Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unsporting is an adjective meaning "violating accepted standards or rules". It carries one recorded sense.
violating accepted standards or rules
“a dirty fighter”
“used foul means to gain power”
“a nasty unsporting serve”
“fined for unsportsmanlike behavior”
Definitions, synonyms and semantic relations for unsporting come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.