Word Type

Adjective

Adjective

The word "informal" can be used as adjective and adjective.

Word Relationships

Opposites (Antonyms)

formal formal

Derived Terms

informal fallacy informal group informal learning informal logic informal marriage informal settler informalism informalist informality informalize informally informalwear semi-informal superinformal

Derived From

formal

Context

gardening

Type Of (IsA)

wearable item

Related Terms

accord ceremonious everyday formal organized planned regulation structured suit unrhetorical usage usual

Similar Terms

casual colloquial common conversational conversational daily epistolary epistolatory epistolatory everyday everyday folksy folksy free and easy free-and-easy friendly friendly nonliterary nonliterary slangy slangy subliterary subliterary unceremonial unceremonial unceremonious unliterary unofficial unofficial unrhetorical vernacular vulgar vulgar

Synonym Network

casual colloquial unofficial

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.