Top Definition
Gone or simply of no good use anymore.
Example 1: Nirvana became defunct after Kurt Cobain's death.

Example 2: I dropped my phone in the pool. Looks like it's pretty much defunct.
by Cookies need love too December 20, 2012
1 more definition
Generally inappropriate; Not going the way you want it to.
Lera is way defunct.
by Yashi September 07, 2007

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