informal (adjective) informal: casual, simple
Sinonime: abstract,
aloof,
apathetic,
casual, cool*,
disinterested,
dispassionate,
distant,
impartial,
impersonal, indifferent, laid-back*,
objective, out of it, poker-faced,
remote,
removed,
reserved, spaced-out, spacey,
staid, stolid,
unbiased, uncommitted, unconcerned, uncurious, uninterested, uninvolved, unpassioned, unprejudiced,
withdrawnAntonime: buttoned-up, ceremonious, dressed-up,
formal,
official,
rigid,
stiff