principal

Synonyms: arch capital cardinal champion chief controlling crowning dominant essential first foremost greatest head highest incomparable key leading main mainline major matchless maximum outstanding paramount peerless predominant preeminent premier prevailing primary prime prominent second-to-none sovereign star stellar strongest supereminent superior supreme transcendent unapproachable unequaled unparalleled unrivaled

Antonyms: auxiliary extra least lesser minor secondary trivial unimportant

Synonyms: administrator boss chief dean director exec head key player lead leader preceptor protagonist rector ruler star superintendent

Synonyms: assets capital capital funds money

Antonyms: interest