1. impossible or extremely difficult to describe in words
Usage: less common variant of ‘indescribable’

Examples

• The beauty of the sunset was undescribable.
• She felt an undescribable sense of joy when she saw her newborn baby.
• The pain he experienced was undescribable.
• There was an undescribable quality to the old mansion that made visitors uneasy.
• The artist captured something undescribable in her painting.
• His undescribable talent impressed everyone at the audition.