seem too good to be true
To be so exciting, pleasing, or ideal as to be unbelievable. I knew the asking price for that house seemed too good to be true. It turns out the bank forgot to add a zero to the end when they listed it. I had to ask them to repeat their salary offer because it just seemed too good to be true! My wife is smart, funny, compassionate, beautiful—she seems too good to be true sometimes.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.