1. Having no carpels
   - acarpellous

Antonym: carpellate

• unattractiveness
• unattributable
• unau
• unauthentic
• unauthorised
• unauthorised absence
• unauthorized
• unauthorized absence
• unavailability
• unavailable
• unavailing
• unavenged
• unavoidability
• unavoidable
• unavoidable casualty
• unavoidably
• unavowed
• unawakened
• unaware
• unawareness
• unawares
• unawed
• unbacked
• unbaffled
• unbaked