Synonyms for Threatening

Synonyms starting with letter U

• 

  ugly

  ominous, menacing
• unpropitious

  ominous, menacing
• unsafe

  dangerous, menacing
• unlucky

  ominous, menacing
• unpromising

  ominous
• unpleasant
• unfavourable

  ominous
• upcoming

  menacing
• unfriendly
• unhealthy

  dangerous
• unfortunate
• unfavorable
• untoward
• unnerving
• uninviting
• uncontrollable
• untamed
• upsetting
• uncertain
• urgent
• unwholesome
• unsound
• unstable
• unavoidable
• unseasonable
• unsuited
• untimely
• unapproachable
• unsure
• unsettling
• ungracious
• unkind
• untrustworthy
• unreliable
• undependable
• unescapable
• unfit
• unseemly
• unamusing
• unhumorous