bastard

nouns

insulting terms of address for people who are stupid or irritating or ridiculous
SOB, asshole, bastard, cocksucker, dickhead, mother fucker, motherfucker, prick, shit, son of a bitch, whoreson
the illegitimate offspring of unmarried parents
bastard, by-blow, illegitimate, illegitimate child, love child, whoreson
is derived from
bastardly
is derived from
bastardize
is derived from
bastardise
derogatory term for a variation that is not genuine; something irregular or inferior or of dubious origin
"the architecture was a kind of bastard suggesting Gothic but not true Gothic"
bastard, mongrel
is derived from
bastardly
is derived from
bastardize
is derived from
bastardise

adjectives

fraudulent; having a misleading appearance
bastard, bogus, fake, phoney, phony