Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
measureless is an adjective meaning "without limits in extent or size or quantity". It carries one recorded sense.
without limits in extent or size or quantity
“limitless vastness of our solar system”
“The long unmeasured pulse of time moves everything. There is nothing hidden that it cannot bring to light, nothing once known that may not become unknown.”
Definitions, synonyms and semantic relations for measureless come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.