uncertain

adj.

[1]	unsure , unsure , incertain , indeterminate , unpredictable , undeterminable , unforeseeable , unascertainable , haphazard , chance , arbitrary , random , aleatory , serendipitous , hit-or-miss , casual
[2]	unsure , in/of two minds , vacillating , undecided , unclear , ambivalent , irresolute , indecisive , hesitant , hesitating , undetermined , shilly-shallying , (Brit) at a loose end , (US) at loose ends
[3]	unsure , unsealed , indeterminate , up in the air , indefinite , unpredictable , unresolved , unsettled , in the balance , conjectural , speculative , debatable , touch-and-go , unreliable , doubtful , dubious , questionable , vague , hazy
[4]	variable , changeable , inconstant , unfixed , unsettled , irregular , fickle , erratic , fitful , unsteady , wavering , unreliable , sporadic , occasional , unmethodical , unsystematic
[5]	changeable , unsettled