1. Not wearing a hat
   "stood hatless in the rain with water dripping down his neck"

Antonym: hatted

• Cygnus cygnus
• Cygnus olor
• cylinder
• cylinder block
• cylinder head
• cylinder lock
• cylinder press
• cylindric
• cylindrical
• cylindrical lining
• cylindrical-stemmed
• cylindricality
• cylindrically
• cylindricalness
• cylix
• cyma
• cyma recta
• cyma reversa
• Cymatiidae
• cymatium
• cymbal
• cymbalist
• cymbid
• cymbidium
• cyme