1. Not in keeping with accepted standards of what is right or proper in polite society
   "moved to curb their untoward ribaldry"
   - indecent, indecorous, unbecoming, uncomely, unseemly 
2. Contrary to your interests or welfare
   "made a place for themselves under the most untoward conditions"
   - adverse, inauspicious

See also: improper, unfavorable [US], unfavourable [Brit, Cdn]

• good spirit
• good story
• good temper
• good turn
• good weather
• good word
• good-fellowship
• good-for-naught
• good-for-nothing
• good-hearted
• good-humored
• good-humoredly
• good-humoredness
• good-humoured
• good-humouredly
• good-humouredness
• good-king-henry
• good-looking
• good-natured
• good-naturedly
• good-naturedness
• good-neighborliness
• good-neighbourliness
• good-sized
• good-tempered