in an unsteady manner; "he walked unsteadily toward the
exit"; "The wounded soldier was swinging unsteadily on his legs" Synonym(s):unsteadily, falteringly, uncertainly Antonym(s):steadily, steady
showing lack of certainty; "he paused uncertainly"
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Uncertainly \Un*cer"tain*ly\, adv.
In an uncertain manner.
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