Pronunciation: (bot'um-lis),[key] —adj. 1. lacking a bottom.
2. immeasurably deep.
3. unfathomable; mysterious: a bottomless problem. 4. without bounds; unlimited: He seems to have a bottomless supply of money. 5. without basis, cause, or reason: a bottomless accusation. 6. nude or nearly nude below as well as above the waist: bottomless dancers. 7. featuring bottomless entertainers: a bottomless club.