Simple Definition of wacky

from our Learner's Dictionary

wacky

adjective

wackier; wackiest
informal : amusing and very strange
wacky ideas
My wacky aunt takes a swim before the lake freezes every winter.
the wacky world of his imagination

Cite this Entry

“Wacky.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/wacky. Accessed 15 Apr. 2026.

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