at one's best

English

Prepositional phrase

at one's best

1. Performing as well as one can.

References

• “at one's best”, in Collins English Dictionary.
• “at your best” in Longman Dictionary of Contemporary English, Longman.
• “at someone's/something's best” (US) / “at someone's/something's best” (UK) in Macmillan English Dictionary.