a.
- 無底的;極深的,深不可測的The satellite fell into bottomless space.衛星落入深不可測的太空。 
- 不可理解的a bottomless mystery難解的謎 a bottomless problem深奧難解的問題 
- 無限的a bottomless supply of money取之不盡的錢 
辨析
同義:
a.深不可測的
deep unsounded unmeasured soundless immeasurable abyssal abysmal fathomless unfathomable mysterious同義參見:
abundant


