Open English Wordnet
Adjectives
(s)indecent, indecorous, unbecoming, uncomely, unseemly, untowardnot in keeping with accepted standards of what is right or proper in polite society“was buried with indecent haste”, “indecorous behavior”, “language unbecoming to a lady”, “unseemly to use profanity”, “moved to curb their untoward ribaldry”
(s)adverse, inauspicious, untowardcontrary to your interests or welfare“adverse circumstances”, “made a place for themselves under the most untoward conditions”