Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
drearily is an adverb meaning "in a cheerless manner". It carries one recorded sense.
in a cheerless manner
“in August 1914, there was a dismally sentimental little dinner, when the French, German, Austrian and Belgian members of the committee drank together to the peace of the future”
Definitions, synonyms and semantic relations for drearily come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.