ENGLISH ANTONYMS

英語の反意語:カテゴリー別48の必須反対語ペア

反意語(意味が反対の言葉)は、正確で表現豊かな英語を築く最も強力なツールの一つです。"confident"が"insecure"と対比され、"expand"が"shrink"と対をなすことを知るだけで、スピーキングもライティングも即座に磨かれます。48ペアすべてを見るか、カテゴリーで絞り込んでください。

48 items · 6 topics

形容詞

"good ↔ bad"

morally right or wrong; of high or low quality

"The good news is that the bad results can still be improved with practice."

形容詞

"happy ↔ sad"

feeling pleasure and contentment, or sorrow and unhappiness

"She felt happy at the start of the trip but sad when it ended."

形容詞

"easy ↔ difficult"

requiring little or a great deal of effort to do or understand

"The first chapter was easy, but the final exam was extremely difficult."

形容詞

"hot ↔ cold"

having a high or low temperature

"The coffee was too hot to drink, so she waited until it turned cold."

形容詞

"clean ↔ dirty"

free from dirt, or covered in dirt

"The kitchen was clean after she scrubbed every dirty surface."

形容詞

"brave ↔ cowardly"

ready to face danger without fear, or unwilling to face danger

"The brave firefighter rushed in while the cowardly onlookers ran away."

形容詞

"ancient ↔ modern"

belonging to the distant past, or belonging to the present era

"The ancient walls stood beside a modern glass office building."

形容詞

"polite ↔ rude"

having good manners, or being offensively impolite

"A polite response costs nothing, yet a rude one can end a relationship."

動詞

"give ↔ take"

to transfer something to someone, or to receive something from someone

"She decided to give more than she would ever take from the project."

動詞

"open ↔ close"

to move something so it is no longer shut, or to move it shut

"Please open the window before you close the door on your way out."

動詞

"build ↔ destroy"

to construct something, or to cause it to cease to exist

"It took years to build the company and only one mistake to destroy it."

動詞

"accept ↔ reject"

to agree to receive something, or to refuse to receive it

"The committee chose to accept the first proposal and reject the second."

動詞

"remember ↔ forget"

to retain information in memory, or to fail to keep it

"I always remember her birthday but forget to buy a card in time."

動詞

"expand ↔ shrink"

to become or make larger, or to become or make smaller

"The company continued to expand while its rivals began to shrink."

動詞

"praise ↔ criticise"

to express warm approval, or to express disapproval by pointing out faults

"A good manager knows when to praise effort and when to criticise mistakes."

動詞

"arrive ↔ depart"

to reach a destination, or to leave a place

"Trains arrive on platform one and depart from platform two."

名詞

"victory ↔ defeat"

winning a contest or battle, or losing one

"The team celebrated victory last season and endured a painful defeat this year."

名詞

"question ↔ answer"

a sentence seeking information, or a response that provides it

"Every difficult question deserves a clear and honest answer."

名詞

"beginning ↔ end"

the point at which something starts, or the point at which it finishes

"The beginning of the novel is gripping; the end is deeply satisfying."

名詞

"truth ↔ lie"

a statement that is accurate, or one that is intentionally false

"Telling the truth is always harder than telling a convenient lie."

名詞

"wealth ↔ poverty"

an abundance of money or resources, or the state of having very little

"The city displayed extreme wealth on one street and devastating poverty on the next."

名詞

"success ↔ failure"

the achievement of a goal, or the inability to achieve it

"Each failure brought him closer to understanding what success actually required."

名詞

"friend ↔ enemy"

a person you trust and like, or a person who is hostile towards you

"Over the years, an old enemy slowly became his most trusted friend."

名詞

"order ↔ chaos"

a state of organised arrangement, or a state of complete disorder

"The manager restored order to a department that had descended into chaos."

感情

"love ↔ hate"

an intense feeling of deep affection, or a strong feeling of dislike

"She could not decide whether she felt love or hate for the city she had grown up in."

感情

"calm ↔ anxious"

in a state of peace and composure, or feeling worry and unease

"He appeared calm on the outside but felt deeply anxious throughout the interview."

感情

"confident ↔ insecure"

feeling certain about one's abilities, or feeling uncertain and self-doubting

"Public speaking made her confident in some rooms and deeply insecure in others."

感情

"grateful ↔ resentful"

feeling thankful for something received, or feeling bitter about a perceived wrong

"She tried to stay grateful for what she had rather than becoming resentful of what she lacked."

感情

"hopeful ↔ despairing"

feeling optimistic that something good will happen, or feeling no hope at all

"The early results left them hopeful; the final count left them despairing."

感情

"proud ↔ ashamed"

feeling deep satisfaction about an achievement, or feeling guilt and embarrassment

"She was proud of her honesty even when it left her ashamed of a past mistake."

感情

"excited ↔ bored"

feeling enthusiasm and anticipation, or feeling uninterested and restless

"The first day made everyone excited; the third week of repetition left them bored."

感情

"content ↔ restless"

in a state of peaceful satisfaction, or unable to relax and be still

"After years of feeling restless, she finally felt genuinely content in her new home."

サイズ・スケール

"big ↔ small"

large in size or amount, or little in size or amount

"They moved from a big house in the suburbs to a small flat in the city."

サイズ・スケール

"long ↔ short"

measuring a great distance from end to end, or measuring little

"The long summer holidays felt short once September arrived."

サイズ・スケール

"deep ↔ shallow"

extending far down from the surface, or not extending far down

"The deep end of the pool dropped to five metres; the shallow end was only one."

サイズ・スケール

"wide ↔ narrow"

measuring a great distance from side to side, or measuring little

"The road was wide enough for two lorries but narrowed to a single lane near the bridge."

サイズ・スケール

"heavy ↔ light"

having a great weight, or having little weight

"The heavy winter coat felt too warm when the light spring jacket would have been enough."

サイズ・スケール

"tall ↔ short"

of great height, or of little height

"The tall buildings in the financial district dwarfed the short terraced houses nearby."

サイズ・スケール

"vast ↔ tiny"

of very great extent or quantity, or extremely small

"The vast ocean made the tiny fishing boat look almost invisible from the cliff."

サイズ・スケール

"thick ↔ thin"

with a large distance between opposite sides, or with a small distance

"A thick slice of bread suits toast; a thin one is better for sandwiches."

時間・速度

"fast ↔ slow"

moving or happening at great speed, or at little speed

"City trains are fast during the rush hour, but the rural service is painfully slow."

時間・速度

"early ↔ late"

before the expected or usual time, or after it

"She made a habit of arriving early so she would never risk being late."

時間・速度

"new ↔ old"

recently made or brought into existence, or having existed for a long time

"The new phone felt slimmer and lighter than any old model she had owned."

時間・速度

"temporary ↔ permanent"

lasting for only a limited time, or lasting or intended to last indefinitely

"What started as a temporary fix turned into a permanent solution."

時間・速度

"frequent ↔ rare"

occurring often, or occurring very seldom

"Frequent short breaks improve focus more than rare long ones."

時間・速度

"brief ↔ lengthy"

lasting only a short time, or lasting a long time

"The meeting was supposed to be brief but turned into a lengthy debate."

時間・速度

"immediate ↔ delayed"

happening at once without any wait, or happening later than expected

"An immediate apology would have helped, but the delayed one created more damage."

時間・速度

"ancient ↔ recent"

belonging to a very distant past, or having happened not long ago

"The museum displayed ancient artefacts alongside recent acquisitions."

よくある質問

英語の反意語とは何ですか?

反意語とは、別の単語と反対の意味を持つ単語のことです。例えば "happy" は "sad" の反意語で、"give" は "take" の反意語です。英語には主に3種類の反意語があります:段階的反意語(hot/cold — 中間の度合いがある)、相補的反意語(alive/dead — 中間がない)、関係的反意語(buy/sell — 互いを含意する)です。

反意語を学ぶことが英語語彙習得において重要な理由は?

反意語を学ぶと語彙習得の効率が倍になります。"brave"を学ぶとき、その反対の"cowardly"も同時に内面化され、一度の努力で2つの単語が身につきます。反意語は理解力も高めます。ある単語が何でないかを知ることで、それが何であるかを正確に把握できます。ライティングでは、反意語がコントラストと強調を生み、文章をより表現豊かにします。

英語の反意語ペアを覚えるにはどうすればいいですか?

最も効果的なのは、孤立したリストではなく、実際の文章や会話の中で出会うことです。動画やポッドキャストで単語を耳にしたとき、立ち止まってその反対語は何かと自問しましょう。このページのようにカテゴリーでグループ化することも効果的です。関連する単語は同じ精神的文脈を共有するため、思い出しやすくなります。

英語には反意語がない単語もありますか?

はい。"table"や"pencil"のような具体的な名詞は、特定の物を指すため(性質や関係を表すわけではないため)、通常は真の反意語を持ちません。固有名詞や多くの技術・科学用語にも反意語はありません。反意語は形容詞・副詞・動作や状態を表す動詞に最もよく見られます。

一つの単語が複数の反意語を持つことはありますか?

もちろんです。文脈によって複数の反意語を持つ英単語はたくさんあります。"Hard"は「固い」(反意語:soft)にも「難しい」(反意語:easy)にもなります。"Light"は「軽い」(反意語:heavy)にも「明るい」(反意語:dark)にもなります。だからこそ、このページのように文章や実際の例文の中で反意語を学ぶ方が、孤立したペアを丸暗記するよりもはるかに確実です。

反意語はコンテキストの中で生きています。本物の英語動画を見て、反対語ペアが自然な会話の中でどう使われるか耳で確認しましょう。

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