'antisocialistic' originates from the prefix 'anti-' (from Greek 'anti', meaning 'against') combined with 'socialistic' (from 'socialism'), where 'socialistic' derives from 'socialism' + the adjectival suffix '-istic'.

'antisocialistic' developed as a compound from the hyphenated form 'anti-socialistic' (English), which itself was formed by attaching the classical prefix 'anti-' to 'socialistic' (from 'socialism'). 'Socialism' came into English via French 'socialisme' from Latin/Medieval Latin roots related to 'socialis'.

Originally used to mean 'opposed to socialism' (i.e., politically against socialistic ideas); over time the rare adjective has sometimes been confused with 'antisocial' (meaning 'unsociable'), but its primary sense remains opposition to socialism.