at the top of one's game

English

Alternative forms

• on top of one's game

Prepositional phrase

at the top of one's game

1. (informal) Performing as well as one can.

   Synonym: on one's game

References

• “be at the top of your game” in Longman Dictionary of Contemporary English, Longman.
• “be at the top of your game”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “at the top of one's game”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.