Against vs Contrary vs Opposite

When to use each in English, with meaning, register, and examples.

Against

Top 1,000 (very common)A2preposition

Contrary

Top 3,000 (common)C1adjective

Opposite

Top 2,000 (common)A1adjective
Most common: Against
 AgainstContraryOpposite
Pronunciation🇬🇧 /["/əˈɡenst//əˈɡeɪnst/"]/🇺🇸 /["/əˈɡenst//əˈɡeɪnst/"]/🇬🇧 /["/ˈkɒntrəri/"]/🇺🇸 /["/ˈkɑːntreri/"]/🇬🇧 /["/ˈɒpəzɪt/"]/🇺🇸 /["/ˈɑːpəzɪt/"]/
MeaningIn opposition to something.opposite in nature or meaningSomething that is completely different from something else.
ExampleHe stood against the wall and waited for his friend.His contrary opinion surprised everyone at the meeting.The opposite of hot is cold.
RegisterNeutralNeutralNeutral
How commonTop 1,000 (very common)Top 3,000 (common)Top 2,000 (common)
CEFR levelA2C1A1
Part of speechprepositionadjectiveadjective
Collocationsagainst the law, against all odds, fight against, stand againstbe, run, seem, completely, directly, entirely, to, contrary to expectations, contrary to popular beliefopposite sides, opposite directions, opposite ends
Antonymsfor, in favor ofsimilar, identical, consistentsame, similar
Common mistakesConfused with 'versus', which has a different nuance., Incorrect use of 'against' with non-physical opposition., Missing preposition when used in phrases.'Contrary to' vs 'Contrast to' confusions, Using 'contrary' as an adjective without a proper noun, Mixing up with 'contradictory' in meanings'Opposite' used as a noun instead of an adjective., Confused with 'contradiction' – 'opposite' refers to direct differences., Using 'opposite' with 'to' instead of 'of' (correct: 'opposite of').
Usage notesUse 'against' when discussing opposition or resistance. It is appropriate in both formal and informal contexts, but can sound aggressive if used in sensitive discussions.Use 'contrary' in discussions to express an opposing viewpoint. It's more common in formal writing than in casual conversations. Be cautious when using it in everyday speech, as simpler terms like 'opposite' might be more accessible.Use 'opposite' when describing two things that contrast each other. It’s suitable in most contexts but avoid in overly formal writing.

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Opposite

Frequently asked questions: Against vs Contrary vs Opposite

What's the difference between Against, Contrary, and Opposite?

Against: In opposition to something. Contrary: opposite in nature or meaning Opposite: Something that is completely different from something else.

Which is more common: Against, Contrary, and Opposite?

Against is the most common in everyday English.

Which is more advanced: Against, Contrary, and Opposite?

Contrary is the highest level, at C1, on the CEFR scale.

Are Against, Contrary, and Opposite the same CEFR level?

Against: A2, Contrary: C1, Opposite: A1 on the CEFR scale.

What part of speech are Against, Contrary, and Opposite?

Against: preposition, Contrary: adjective, Opposite: adjective.

Can you show an example of each?

Against: He stood against the wall and waited for his friend. Contrary: His contrary opinion surprised everyone at the meeting. Opposite: The opposite of hot is cold.

Can I use Against, Contrary, and Opposite interchangeably?

Not always. Against, Contrary, and Opposite are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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