Indescribable (adjective)

Too great, extraordinary, or intense to be described in words.

Origin:

From in- (not) + describable (able to be described).

Examples:

1. The beauty of the sunset was indescribable.
2. The pain he felt was indescribable.
3. The feeling of accomplishment was indescribable.
4. The indescribable taste of the dish was a blend of different flavors.
5. The indescribable sensation of weightlessness was experienced during the skydive.