| Adj. | 1. | itsy-bitsy - (used informally) very small; "a wee tot"bittie, bitty, itty-bitty, teensy, teensy-weensy, teentsy, teeny, teeny-weeny, wee, weensy, weeny colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech little, small - limited or below average in number or quantity or magnitude or extent; "a little dining room"; "a little house"; "a small car"; "a little (or small) group"; "a small voice" | |