1. In a questionable and dubious manner
   "these were estates his father questionably acquired"
   - dubiously

See also: questionable

• unfavourable judgment
• unfavourable position
• unfavourableness
• unfavourably
• unfazed
• unfearing
• unfeasibility
• unfeasible
• unfeathered
• unfed
• unfeeling
• unfeelingly
• unfeelingness
• unfeigned
• unfeignedly
• unfeminine
• unfenced
• unfermented
• unfertile
• unfertilised
• unfertilized
• unfetter
• unfettered
• unfilial
• unfilled