1. Having no carpels
   - acarpellous

Antonym: carpellate

• stillage
• stillbirth
• stillborn
• stillborn infant
• stillness
• stillroom
• Stillson wrench
• stilly
• stilt
• stilt plover
• stiltbird
• stilted
• stiltedly
• Stilton
• Stilwell
• stime
• stimulant
• stimulant drug
• stimulate
• stimulated
• stimulating
• stimulation
• stimulative
• stimulator
• stimulus