I. “+ preposition
Etymology: Middle English unlik, from un- (I) + lik, preposition, like — more at like
: not like: as
a.
(1) : different from : dissimilar to
felt strangely unlike a successful lover — Floyd Dell
(2) : not characteristic of
it was unlike him to be late
b.
(1) : in a different manner from : differently from
become, unlike all other human beings, altogether free from personal or class bias — M.R.Cohen
(2) : in a manner that is not characteristic of
so many fine men were outside the charmed circle that, unlike most colleges, there was no disgrace in not being a club man — John Reed
II. adjective
Etymology: Middle English unlik, from un- + lik, adjective, like — more at like
1. : not like: as
a. : marked by dissimilarity : dissimilar , different
men are profoundly unlike — E.W.Sinnott
b. : marked by inequality : unequal
contributed unlike amounts
2. archaic : unlikely
it's unlike to dry off the grass before midnight — MacKinlay Kantor
III. noun
: a person or thing marked by difference
IV. conjunction
: in a manner that is different than : not as
unlike in the gasoline engine, fuel does not enter the cylinder with air on the intake stroke — Irving Frazee