Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
contraclockwise is an adjective meaning "in the direction opposite to the rotation of the hands of a clock". It carries one recorded sense.
in the direction opposite to the rotation of the hands of a clock
Definitions, synonyms and semantic relations for contraclockwise come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.