weeny vs itsy-bitsy

weeny and itsy-bitsy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
weeny	No	Yes	No	No
itsy-bitsy	No	Yes	No	No

As adjectives, weeny and itsy-bitsy are synonyms defined as:

Other synonyms of weeny include bittie, bitty, itty-bitty, teensy-weensy, teensy, teentsy, teeny-weeny, teeny, wee, weensy.

weeny (adjective)	itsy-bitsy (adjective)
(used informally) little or tiny	(used informally) little or tiny