Itsy-bitsy describes something extremely small or tiny, often to the point of being insignificant. It emphasizes the diminutive nature of an object, emphasizing the almost imperceptible size. It's a childish or informal term that often implies cuteness or endearing smallness. The word suggests a very small amount, quantity, or measurement that can barely be perceived with the naked eye.
It's often used in a playful or lighthearted context to emphasize the extreme smallness. .
WEE
TINY
TEENY EENSY BITTY WEENY SMALL MICRO
MINUTE BITTIE TEENSY WEENSY PEEWEE
TEENTSY
ITTYBITTY
TEENYWEENY
TEENSYWEENSY