Definition of unreliable Unreliable

/ʌˌnɹɪlajˈʌbʌl/ - [unrilayubul] - un•re•li•a•ble

We found 8 definitions of unreliable from 5 different sources.

What does unreliable mean?

Adjective
unreliable - not worthy of reliance or trust; "in the early 1950s computers were large and expensive and unreliable"; "an undependable assistant"
		undependable
		reliable, dependable worthy of reliance or trust; "a reliable source of information"; "a dependable worker"
		untrustworthy, untrusty not worthy of trust or belief; "an untrustworthy person"
		erratic, temperamental liable to sudden unpredictable change; "erratic behavior"; "fickle weather"; "mercurial twists of temperament"; "a quicksilver character, cool and willful at one moment, utterly fragile the next"
		uncertain ambiguous (especially in the negative); "she spoke in no uncertain terms"
unreliable - lacking a sense of responsibility
		irresponsible showing lack of care for consequences; "behaved like an irresponsible idiot"; "hasty and irresponsible action"
unreliable - liable to be erroneous or misleading; "an undependable generalization"
		undependable
		fallible likely to fail or make errors; "everyone is fallible to some degree"
unreliable - dangerously unstable and unpredictable; "treacherous winding roads"; "an unreliable trestle"
		treacherous
		dangerous, unsafe causing fear or anxiety by threatening great harm; "a dangerous operation"; "a grave situation"; "a grave illness"; "grievous bodily harm"; "a serious wound"; "a serious turn of events"; "a severe case of pneumonia"; "a life-threatening disease"