RichThesaurus
unformal
unformal
synonyms
informal
nonformal
informal
unceremonious
uncustomary
unimaginative
unceremonial
unstately
unstilted
unstuffy
loud
nonstandard
uncontrived
muted
unsophisticated
unruffled
lighthearted
simple
unstylish
undistinguished
nonliterary
inelaborate
mild
unostentatious
vanilla
open
loose
ceremonious
humble
clambake
amorphous
unstarchy
unbuttoned
unconventional
unplanned
unpremeditated
disorderly
parol
everyday
unstructured
casual
workaday
impromptu
colloquial
nonconformist
free and easy
wonted
routine
accustomed
illegal
unformal
definitions
adj
Not formal.