1. Without success
   "she tried unsuccessfully to persuade him to buy a new car"

See also: unsuccessful

Antonym: successfully

• unpasteurised
• unpasteurized
• unpatented
• unpatriotic
• unpatriotically
• unpatronised
• unpatronized
• unpatterned
• unpaved
• unpeaceable
• unpeaceful
• unpeeled
• unpeg
• unpeople
• unpeopled
• unperceivable
• unperceived
• unperceiving
• unperceptive
• unperceptiveness
• unperformed
• unpermed
• unpermissive
• unpermissiveness
• unperplexed