blind bargain, pig in a poke, leap in the dark, something or other
needle in a haystack, needle in a bottle of hay
roving commission. precariousness etc.adj.
fallibility.
Verbs
be uncertain etc.adj.
wonder whether. lose the clue, lose the clew, scent
miss one's way. not know what to make of etc.(unintelligibility)Unintelligibility, not know which way to turn, not know whether one stands on one s head or one's not know whether one stands on one s head or one's heels
float in a sea of doubt, hesitate, flounder
lose oneself, lose one's head
muddle one's brains. render uncertain etc.adj.
put out, pose, puzzle, perplex, embarrass
confuse, confound
bewilder, bother, molder, addle the wits, throw off the scent