main

Synonyms: capital cardinal central chief controlling critical crucial essential foremost fundamental head leading major necessary outstanding paramount particular preeminent premier prevailing primary prime special star stellar supreme vital

Antonyms: auxiliary extra insignificant minor secondary subordinate unimportant

Synonyms: brute direct downright entire mere only pure sheer simple undisguised utmost

Antonyms: inessential nonessential unnecessary

Synonyms: cable channel conduit duct line trough trunk