Antonyms of noun formality

1 of 3 senses of formality

Sense 2
formality, formalness -- (a manner that strictly observes all forms and ceremonies; "the formality of his voice made the others pay him close attention")
       Antonym of informality (Sense 1)
      => informality -- (a manner that does not take forms and ceremonies seriously)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun formality

3 senses of formality

Sense 1
formality, formalities -- (a requirement of etiquette or custom; "a mere formality")
       => ceremony, ceremonial, ceremonial occasion, observance -- (a formal event performed on a special occasion; "a ceremony commemorating Pearl Harbor")

Sense 2
formality, formalness -- (a manner that strictly observes all forms and ceremonies; "the formality of his voice made the others pay him close attention")
       => manner, personal manner -- (a way of acting or behaving)

Sense 3
formality -- (compliance with formal rules; "courtroom formality")
       => conformity, conformation, compliance, abidance -- (acting according to certain accepted standards; "their financial statements are in conformity with generally accepted accounting practices")