2
general::
adj. not confident VERBS be, feel, look, seem | become ADV. deeply, very I feel deeply uncertain about the future. | a little, rather, slightly | strangely PREP. about, as to He seemed strangely uncertain as to how to continue. | of We were rather uncertain of the direction it came from. not known exactly VERBS be, look | become | remain, seem ADV. 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.
Oxford Collocations Dictionary