adjective
- relating to or characteristic of the deepest parts of the ocean
- extremely deep or profound; immeasurably great
Usage: oceanography; geology
Usage: formal
Examples
- The abyssal plains cover much of the ocean floor.
- Scientists study abyssal creatures that live in complete darkness.
- The submarine descended to abyssal depths.
- Abyssal sediments accumulate over millions of years.
- He stared into the abyssal darkness of the cave.
- The philosopher contemplated the abyssal nature of human existence.
- Abyssal temperatures remain near freezing year-round.