I. “+ adjective
Etymology: Middle English, from un- (I) + tidy, adjective
1. : unfit , unsuitable
is an untidy walk on a glaring afternoon in July — Michael Arlen
2.
a. : not neat in appearance : careless , slovenly
untidy tufts of grizzled hair — Walter de la Mare
b. : not neat in habits or procedure : not orderly
was untidy and casual about money — Frank O'Connor
3.
a. : not neatly organized or carried out : having loose ends
convert an untidy manuscript into a great book — S.E.Harris
instinct for illogical and untidy but highly effective compromise — G.B.Baldwin
b. : marked by or conducive to a lack of neatness
untidy tasks like bathing the baby — New Yorker
II. transitive verb
Etymology: un- (II) + tidy
: disarrange , disorder