Also found in: Dictionary, Thesaurus, Legal.
very She'd be only too happy to help you. We were only too aware of the risks involved in traveling there.
1. At the very least, as a matter of fact, as in I know only too well that I can't win the lottery. This usage was first recorded in 1817.
2. Very, extremely, as in I am only too glad to help. This usage was first recorded in 1899.