Enter a clue or pattern or both:
The Clue
Like Crater Lake (4 letter answer)
The Answer
DEEP
Tags
Notes
The answer DEEP is seen frequently, appearing about once every 100 puzzles.
Related Clues
Abstruse
Abysmal
Benchley's "The ___"
Bottomless
Fathomless
Heartfelt
Heavy
Philosophical
Profound
Recondite
Difficult to fathom
Far from shallow
Hard to comprehend
Hard to fathom
Hard to grasp
Many-layered
Not obvious
Not shallow
Shallow's opposite
Thought-provoking
Throat or River
Benchley best-seller with "The"
Kind of dish or sea
Like a billionaire's pockets
Like Hume's tomes
Like the Mariana Trench
Like the mid-ocean
Like still waters
Requiring much thought
Like one end of many pools
Like some football passes