Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unsteadily is an adverb meaning "in an unsteady manner". It carries one recorded sense.
in an unsteady manner
“he walked unsteadily toward the exit”
“The wounded soldier was swinging unsteadily on his legs”
Definitions, synonyms and semantic relations for unsteadily come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.