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She is a competent engineer.
She has the necessary skills and ability.
Having the necessary ability, knowledge, or skill to do something successfully.
The committee appointed a competent manager to oversee the project.
They chose a manager who is qualified and effective.
Often used in professional, academic, or legal contexts to stress adequacy rather than excellence.
Late Middle English, from Latin competentem (nominative competent), present participle of competere ‘to meet, be suitable’, from com‑ ‘together’ + petere ‘to seek, aim at’. The sense ‘suitable, qualified’ developed in the 15th century.
Use ‘competent’ to describe sufficient ability. For a higher degree, choose ‘highly competent’ or ‘exceptionally competent’. It is not typically used for moral judgments; use ‘ethical’ or ‘honest’ for that.