sufficient is on the Academic Word List.

Pronunciation

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Adjective

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Positive
sufficient

Comparative
none

Superlative
none

  1. (formal) If something is sufficient, it means there is enough or that it is good enough.
    We now have a sufficient number of people to do the job.
    The food supplies should be sufficient to last the winter.
    The factory was shut down because if didn't meet the necessary and sufficient conditions for safety.
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Determiner

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Determiner
sufficient

  1. (indefinite) You use sufficient to identify the smallest amount needed.
    Sufficient of us are against this idea that we should stop now.