say it: uhn-SUR-tuhn-lee
uncertainly is an adverb meaning "in an unsteady manner". It carries 2 recorded senses.
in an unsteady manner
“he walked unsteadily toward the exit”
“The wounded soldier was swinging unsteadily on his legs”
showing lack of certainty
“he paused uncertainly”
Definitions, synonyms and semantic relations for uncertainly come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.