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

• scrubbed
• scrubber
• scrubbiness
• scrubbing
• scrubbing brush
• scrubbird
• scrubby
• scrubland
• scrubs
• scruff
• scruffily
• scruffy
• scrum
• scrum-half
• scrummage
• scrummy
• scrump
• scrumptious
• scrumptiously
• scrumpy
• scrunch
• scrunch up
• scrunchie
• scrunchy
• scruple