bottomless

UK: ˈbɒtəmləs | US: ˈbɑːtəmləs

Definition
  1. adj. having no bottom; extremely deep or limitless

  2. adj. (figurative) inexhaustible or boundless

Structure
bottom <lowest part>less <without>
Etymology

The word combines "bottom" (from Old English botm, meaning "foundation" or "lowest point") with the suffix "-less" (from Old English -lēas, meaning "without"). Originally literal (e.g., a bottomless pit), it later gained figurative use (e.g., bottomless energy) to emphasize boundlessness. The morphemes reflect a straightforward Germanic construction.

Examples
  1. The cave descended into a bottomless abyss.

  2. Her bottomless curiosity drove her to explore every topic.

  3. The restaurant offered bottomless coffee during breakfast.

  4. Legends speak of a bottomless lake hiding ancient secrets.

  5. His patience seemed bottomless, even in the most frustrating situations.