Collocations for uncertain - adj.

be, feel, look, seem | become

deeply, very
I feel deeply uncertain about the future.

a little, rather, slightly | strangely

about, as to
He seemed strangely uncertain as to how to continue.

of
We were rather uncertain of the direction it came from.

be, look | become | remain, seem

extremely, highly, very | increasingly | quite, rather, somewhat | still
Whether diet is an important factor in this illness is still uncertain.

inevitably, inherently
The world is inherently uncertain.

notoriously
Cost estimates are notoriously uncertain in this business.