1. uncertain

adjective. (ənˈsɝːtən) Lacking or indicating lack of confidence or assurance.
Synonyms
self-assurance sureness assurance dubious ambivalent authority groping unsure doubtful incertain confidence self-confidence certainty
Antonyms
sure uncertainty certain convinced diffidence
Etymology
uncertain (English)
certain (English)
certain (Middle English (1100-1500))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)
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2. uncertain

adjective. (ənˈsɝːtən) Not established beyond doubt; still undecided or unknown.
Synonyms
undetermined foregone conclusion sure thing indeterminate indefinite up in the air certainty
Antonyms
uncertainty determinate certain unsteadiness unquestionable
Etymology
uncertain (English)
certain (English)
certain (Middle English (1100-1500))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)

3. uncertain

adjective. (ənˈsɝːtən) Ambiguous (especially in the negative).
Synonyms
ambiguous
Antonyms
unambiguous unsure
Etymology
uncertain (English)
certain (English)
certain (Middle English (1100-1500))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)

4. uncertain

adjective. (ənˈsɝːtən) Not certain to occur; not inevitable.
Synonyms
chancy fluky unpredictable up in the air flukey iffy contingent
Antonyms
certain predictable confident settled diffident
Etymology
uncertain (English)
certain (English)
certain (Middle English (1100-1500))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)

5. uncertain

adjective. (ənˈsɝːtən) Not established or confirmed.
Synonyms
unsealed
Antonyms
sealed determinable
Etymology
uncertain (English)
certain (English)
certain (Middle English (1100-1500))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)

6. uncertain

adjective. (ənˈsɝːtən) Subject to change.
Synonyms
variable changeable unsettled
Antonyms
invariable conclusive determined beginning
Etymology
uncertain (English)
certain (English)
certain (Middle English (1100-1500))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)

7. uncertain

adjective. (ənˈsɝːtən) Not consistent or dependable.
Synonyms
undependable unreliable
Antonyms
reliable dependable unpredictability
Etymology
uncertain (English)
certain (English)
certain (Middle English (1100-1500))
un- (English)
on- (Middle English (1100-1500))
on- (Old English (ca. 450-1100))
ond- (Old English (ca. 450-1100))
un- (Middle English (1100-1500))
un- (Old English (ca. 450-1100))
unus (Latin)
oinos (Latin)
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