Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unerring is an adjective meaning "not liable to error". It carries one recorded sense.
not liable to error
“the Church was...theoretically inerrant and omnicompetent”
“lack an inerrant literary sense”
“an unerring marksman”
Definitions, synonyms and semantic relations for unerring come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.