1. Not like; dissimilar; diverse; having no resemblance; as, the cases are unlike.
2. Not likely; improbable; unlikely. [Obsoles.]
Unlike quantities Math., quantities expressed by letters which are different or of different powers, as a, b, c, a², a³, x
Unlike signs Math., the signs plus (+) and minus (-).
adj 1: not like; marked by dissimilarity; "for twins they are very
unlike"; "people are profoundly different" [syn: dissimilar,
different] [ant: like]
2: not equal in amount; "they distributed unlike (or unequal)
sums to the various charities" [syn: unequal] [ant: like]