Synonyms of formal in English:

formal


See US English definition of formal

See UK English definition of formal

See Spanish definition of formal

adjective

1‘a formal dinner’

SYNONYMS
ceremonial, ceremonious, ritualistic, ritual, conventional, traditional, orthodox, prescribed, fixed, set
stately, courtly, solemn, dignified
elaborate, ornate, dressy
ANTONYMS

informal

2‘he has a very formal manner’

SYNONYMS
aloof, reserved, remote, detached, unapproachable, stand-offish, keeping people at arm's length
stiff, prim, stuffy, staid, ceremonious, correct, proper, decorous, conventional, precise, exact, punctilious, unbending, inflexible, strait-laced
unresponsive, unfriendly, unsympathetic, haughty, forbidding, austere
withdrawn, restrained, reticent, taciturn, uncommunicative, undemonstrative, unforthcoming
unsocial, antisocial
ANTONYMS

informal, casual

3‘in the US ‘autumn’ is a formal alternative to ‘fall’’

SYNONYMS
literary, scholarly, learned, intellectual, erudite, bookish, highbrow, academic, cultivated
ANTONYMS

informal, colloquial

4‘a formal garden’

SYNONYMS
symmetrical, regular, orderly, arranged, methodical, systematic, in straight lines, regimented
ANTONYMS

informal

5‘formal permission is required to demolish a listed building’

SYNONYMS
official, legal, authorized, approved, validated, certified, endorsed, documented, sanctioned, licensed, recognized, authoritative, accepted, verified, legitimate, lawful, valid, bona fide, proper, prescribed, pro forma
ANTONYMS

informal, unofficial

6‘she had had no formal education’

SYNONYMS
conventional, mainstream, rigid
school, institutional
ANTONYMS

informal