gaping hole
- chasmDeep, steep-sided gap
- abyssImmeasurably profound depth
- voidWithout legal effect
- craterImpact or volcanic basin
- cavityEmpty space within
pit · wound · opening · yawning · cavernous · dark · bottomless · emptiness · maw · breach · rupture · tear · gorge · crevasse · hollow · gash · fissure · swallowing