1having a frizzy texture or appearance:a girl with fuzzy dark hair
2difficult to perceive; indistinct or vague:the picture is very fuzzythat fuzzy line between right and wrong
(of a person or the mind) unable to think clearly; confused:my mind felt fuzzy
3another term for fuzzed.their former jolly sound has been drowned in swathes of layered, fuzzy guitar
4 Computing & Logic relating to a form of set theory and logic in which predicates may have degrees of applicability, rather than simply being true or false. It has important uses in artificial intelligence and the design of control systems.