1. Having no bottom
   "bottomless pyjamas consisting simply of a long top opening down the front"
    
2. Extremely deep
   "a bottomless pit"; "a bottomless lake"
    
3. Having no apparent limits or bounds
   "a bottomless supply of money"; "bottomless pockets"
    
4. Unclothed especially below the waist or featuring such nudeness
   "bottomless dancers"; "a bottomless bar"

See also: deep, limitless, unclothed, unlimited

Antonym: bottomed

Encyclopedia: Bottomless