Inhibit vs Suppress

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

Inhibit

Top 2,000 (common)C1verb

Suppress

FormalTop 3,000 (common)C1verb
Most formal: SuppressMost common: Inhibit
 InhibitSuppress
Pronunciation🇬🇧 /["/ɪnˈhɪbɪt/","/ɪnˈhɪbɪts/","/ɪnˈhɪbɪtɪd/","/ɪnˈhɪbɪtɪŋ/"]/🇺🇸 /["/ɪnˈhɪbɪt/","/ɪnˈhɪbɪts/","/ɪnˈhɪbɪtɪd/","/ɪnˈhɪbɪtɪŋ/"]/🇬🇧 /["/səˈpres/","/səˈpresɪz/","/səˈprest/","/səˈpresɪŋ/"]/🇺🇸 /["/səˈpres/","/səˈpresɪz/","/səˈprest/","/səˈpresɪŋ/"]/
Meaningto stop something from happening or growingTo stop something from happening or being expressed.
ExampleA lack of oxygen may inhibit brain development in the unborn child.The government tried to suppress the political dissent during the protests.
RegisterNeutralFormal
How commonTop 2,000 (common)Top 3,000 (common)
CEFR levelC1C1
Part of speechverbverb
Collocationsgreatly, markedly, seriously, tend to, from, greatly, markedly, seriously, tend to, frombrutally, ruthlessly, violently, attempt to, seek to, try to, an attempt to suppress something, completely, effectively, deliberately, attempt to, seek to, try to, an attempt to suppress something, barely, hardly, instantly, be unable to, cannot, try to
Antonymspromote, encourage, facilitateexpress, release, unleash
Common mistakesConfused it with 'prohibit', which means to formally forbid something., Using it with the wrong preposition; it should be 'inhibit something', not 'inhibit to something'., Mixing it up with 'enhance'; inhibit means to restrict, while enhance means to improve.Confused with 'repress' — 'suppress' means to stop something actively, while 'repress' means to hold back feelings., Using 'suppress' without an object — always specify what is being suppressed, like information or emotions., Mixing up 'suppress' with 'sustain' — 'sustain' means to maintain, while 'suppress' means to stop.
Usage notesUse 'inhibit' in both formal and informal contexts when discussing the prevention or slowing of actions, processes, or behaviors. It is appropriate in scientific, medical, or academic discussions, but might sound too technical in casual conversations.This word is typically used in formal contexts. It can refer to controlling emotions, information, or actions. Avoid using it in casual conversations.

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Suppress

Frequently asked questions: Inhibit vs Suppress

What's the difference between Inhibit and Suppress?

Inhibit: to stop something from happening or growing Suppress: To stop something from happening or being expressed.

Which is more formal: Inhibit and Suppress?

Suppress is the most formal of these.

Which is more common: Inhibit and Suppress?

Inhibit is the most common in everyday English.

Are Inhibit and Suppress the same CEFR level?

Inhibit: C1, Suppress: C1 on the CEFR scale.

What part of speech are Inhibit and Suppress?

Inhibit: verb, Suppress: verb.

Can you show an example of each?

Inhibit: A lack of oxygen may inhibit brain development in the unborn child. Suppress: The government tried to suppress the political dissent during the protests.

Can I use Inhibit and Suppress interchangeably?

Not always. Inhibit and Suppress 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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