Synonyms of formal

1 Syllable

set, preux, stock, prim, staid, strict

2 Syllables

lawful, stodgy, legal, high-bred, courtly, staider, casuals, staidest, inkhorn, formals, cleanlier, stocker, genteel, primmer, solemn, blue-nose, donnish, proper, fixed, schoolish, stilted, express, ritual, rigid, stodgier

3 Syllables

statelier, reserved, official, dogmatic, bluenose, self-styled, austere, nominal, so-called, precise, ungenial, confirmed, passionless, explicit, orderly, spic-and-span, decorous, unloving, directed, dignified, stately, unbending, regular, itular, self-named, soi-disant, wrong-headed, formalwear, punctilious, approved, prescribed, pedantic

4 Syllables

self-controlled, self-restrained, belletristic, academic, formalistic, literary, impersonal, stereotyped, elevated, unmistaken, ritualistic, methodical, ceremonious, overmodest, conventional, insociable, overnice, systematic, ceremonial

5 Syllables

stereotypical, declamatory, overconscientious

6 Syllables

uncompanionable, ceremonialistic