Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unhygienic is an adjective meaning "unclean and constituting a likely cause of disease". It carries one recorded sense.
unclean and constituting a likely cause of disease
“pathetic dogs kept in small unhygienic cages”
Definitions, synonyms and semantic relations for unhygienic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.
147,478 entries in AltF Lexicon, every one with its syllables marked.
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