Scientists cannot be certain about how life began on earth because there is no evidence on where the first living thing came from.
There is a lot of "uncertain" things in science. For example, time travel, worm holes, atoms, cellular development, etc.
I am uncertain how to use a dictionary.
Although it was cloudy, he was uncertain that it would rain.
an uncertain belief
Uncertain
There is a lot of "uncertain" things in science. For example, time travel, worm holes, atoms, cellular development, etc.
I was uncertain about whose voice it was.He was uncertain about the results.
an uncertain man's relationship would b jus as uncertain as he is...
Uncertain etiology means the cause is unknown.
I am uncertain how to use a dictionary.
He felt uncertain about the future.
THE ANSWER IS UNSURE. THIS IS ONE OF MANY SYNONYMS OF UNCERTAIN.
antonym: uncertain, unsure
That Uncertain Feeling was created in 1956.
An Uncertain Season was created in 1988.
Uncertain Pleasures was created in 1990.
An Uncertain Place was created in 2008.