not to be outdone

not to be outdone

1. Anticipating and preparing against the possibility that someone might outdo one; taking special measures to ensure one cannot be one-upped or outmaneuvered.

• “not to be outdone” in Longman Dictionary of Contemporary English, Longman.
• “not to be outdone”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “not to be outdone”, in Collins English Dictionary.