Definitions of bottomless:

• adjective:   having no apparent limits or bounds

  Example: "A bottomless supply of money"

• adjective:   having no bottom

  Example: "Bottomless pajamas consisting simply of a long top opening down the front"

• adjective:   unclothed especially below the waist or featuring such nudeness

  Example: "Bottomless dancers"

• adjective:   extremely deep

  Example: "A bottomless pit"