dubiousness
131uncertainty — n 1. doubt, doubtfulness, dubiousness, dubiety, skepticism; unsureness, hesitancy, hesitation; caution, wariness, tentativeness; suspicion, suspiciousness, diffidence, misgiving, distrust, mistrust. 2. guess, piece of guesswork; borderline case,… …
132unlikelihood — n improbability, unlikeliness, a ghost of or a Chinaman s chance, small or little chance, poor prospect, remote possibility, long shot, long odds; doubtfulness, dubiousness, questionableness, ques tionability; implausibility, incredibility,… …