Definition of "unsigned"

unsigned

adjective
not comparable
1. (computing) Not accepting negative numbers; having only a positive absolute value.
2. Lacking a signature, unendorsed.
3. Not signed to an organization such as a sports club or record label.
  Quotations
  The unsigned player also had the option of sitting out a year and negotiating as a free agent.
  2008, Jonathan Rand, The Year That Changed the Game
noun
plural unsigneds
1. (computing) A numeric value or variable that has no sign and can only be positive.
  Quotations
  For compilers which produce two-byte unsigneds, the maximum cumulative frequency is 16,383 if we wish to avoid the use of long arithmetic.
  1999, Steve Heller, Optimizing C++, page 107