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

• plus
• plus fours
• plus sign
• plush
• plush-like
• plushy
• Plutarch
• Pluteaceae
• Pluteus
• Pluteus aurantiorugosus
• Pluteus cervinus
• Pluteus magnus
• Pluto
• plutocracy
• plutocrat
• plutocratic
• plutocratical
• pluton
• Plutonian
• plutonic
• plutonic rock
• plutonium
• plutonium 239
• plutonium bomb
• plutonium pit