1. Not having the surface treated or coated with sizing
   "unsized paper" 
2. Not fashioned to sizes
   "unsized gloves; one size fits all"

See also: unsorted

Antonym: sized

• piaffe
• Piaget
• Piagetian
• pial
• pianism
• pianissimo
• pianissimo assai
• pianist
• pianistic
• piano
• piano accordion
• piano action
• piano damper
• piano keyboard
• piano lesson
• piano maker
• piano music
• piano player
• piano sonata
• piano stool
• piano teacher
• piano tuner
• piano wire
• pianoforte
• Pianola