unmatchable (adjective)

1. Their love was unmatchable; like a fairytale come true.

2. Superman's strength is unmatchable, making him the strongest hero in the comics universe.

3. The writer's ability to create vivid imagery is unmatchable, making his novels a joy to read.

4. The devotion and faithfulness of the nun was unmatchable, serving as an inspiration to all in her religious community.