not put it past someone

not put it past (someone)

To not dismiss or rule out the possibility that someone has engaged in a particular kind of bad behavior, based on that person's previous pattern of behavior. Do I think Joe stole the money? Honestly, I wouldn't put it past him. He has no conscience. It seems a bit far-fetched that the government is spying on us with our own appliances, but I wouldn't put it past them.
See also: not, past, put

not put it past someone

believe someone to be psychologically capable of doing something, especially something you consider wrong or rash.
See also: not, past, put, someone