- informal particular in making a choice; difficult to please
WordReference Random House Learner's Dictionary of American English © 2016
- hard to please;
very particular, esp. in making a selection.
adj., choos•i•er, choos•i•est.
- hard to please, particular;
fastidious, esp. in making a selection:She's too choosy about food.
- choose + -y1 1860–65, American.