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uncertain

In a sentence
Tom si je neistý.
Tom is unsure.
Bol som neistý, ktorú cestu zvoliť.
I was unsure which road to take.
Neistá situácia na trhu trvá už mesiace.
The uncertain market situation has lasted for months.
Neistý krok na ľade ju spomalil.
An uncertain step on the ice slowed her down.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Includes Tatoeba example sentences when present.
Full attribution on References.