bottomless

adjective7

1. •
   Having no bottom.

   • And while the railway's finances will forever remain a bottomless black hole, Highways England finances are rapidly becoming a bottomless pothole! — 2021
2. •
   Extremely deep.
3. •
   Having no bounds; limitless.

   • The restaurant offered bottomless drinks.
4. •
   Of a meal: accompanied by unlimited drinks.

   • I get a message from some school friends about a bottomless brunch they want to go to. — 2021
5. •
   (Philippines) refillable (usually for iced tea or other such cold beverages)
6. •
   Not wearing clothes below the waist; particularly not wearing clothes that would cover the genitalia.
7. •
   Difficult to understand; unfathomable.