1. of, relating to, or resembling a chasm; characterized by a deep opening or gap
Usage: formal or literary; rare in everyday usage

Examples

• The chasmal depths of the canyon stretched far below the hikers.
• A chasmal void separated the two mountain peaks.
• The earthquake created a chasmal fissure in the earth.
• They peered into the chasmal darkness of the cavern.
• The chasmal gap between their opinions seemed impossible to bridge.