Simple Definition of uncool
: not popular or fashionable
: not respectable or acceptable
Full Definition of uncool
1 : lacking in assurance, sophistication, or self-control
2 : failing to accord with the values or styles (as of dress or behavior) of a particular group : not accepted or admired as cool or proper <driving an uncool car> <an uncool remark>
Examples of uncool in a sentence
Her parents' car is totally uncool.
It's uncool to lie to your friends.
First Known Use of uncool
Seen and Heard
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