only too (something)

only too (something)

Very. Don't tell her the truth—she'd be only too glad to use it against you later. As a small business owner, I know only too well how tough it is to succeed in this economy.

only too

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.

only too ˈglad, ˈready, etc. (to do something)

very glad, ready, etc: If you want any advice, I’d be only too willing to give it.She was only too pleased to help.

only too ˈpleased (to do something)

very happy or willing to do something: We’re only too pleased to help.
See also: please

only too ˈwell

used for emphasizing that you already know about somebody/something or have already experienced something unpleasant, etc: ‘Do you know Alex Humber?’ ‘Only too well. He’s not one of my favourite people, I’m afraid.’
See also: well