wasn't born yesterday

idiom

Definition of wasn't born yesterday

used to say that someone is unlikely to believe something that is not true or to trust someone who is not trustworthy He said he'd pay me back, but I'll believe it when I see it. I wasn't born yesterday.

Learn More about wasn't born yesterday

Dictionary Entries near wasn't born yesterday

washy

Wasmosy

wasn't

wasn't born yesterday

wasp

WASP

wasp's nest

Statistics for wasn't born yesterday

Look-up Popularity

Comments on wasn't born yesterday

What made you want to look up wasn't born yesterday? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to shake or wave menacingly

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!