1. Lacking fresh air
   "a dusty airless attic"
   - close, stuffy, unaired

See also: unventilated

• unadapted
• unaddicted
• unaddressed
• unadjustable
• unadjusted
• unadmonished
• unadoptable
• unadorned
• unadulterated
• unadventurous
• unadvisable
• unadvised
• unadvisedly
• unaerated
• unaesthetic
• unaffected
• unaffectedly
• unaffectedness
• unaffecting
• unaffectionate
• unaffiliated
• unaffixed
• unaffordable
• unaffordablity
• unafraid