dickhead vs son of a bitch

dickhead and son of a bitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
dickhead	Yes	No	No	No
son of a bitch	Yes	No	No	No

As nouns, dickhead and son of a bitch are synonyms defined as:

dickhead and son of a bitch: insulting terms of address for people who are stupid or irritating or ridiculous

Other synonyms of dickhead include asshole, bastard, cocksucker, mother fucker, motherfucker, prick, shit, SOB, whoreson.

dickhead (noun)	son of a bitch (noun)
insulting terms of address for people who are stupid or irritating or ridiculous	insulting terms of address for people who are stupid or irritating or ridiculous