1. [ noun ] the state of being unsure of something
Synonyms: doubt uncertainty dubiety doubtfulness incertitude
Related terms: certainty cognitive_state incredulity indecision suspense misgiving mental_reservation
2. [ noun ] uncertainty about the truth or factuality of existence of something
Synonyms: question doubt doubtfulness

"the dubiousness of his claim" "there is no question about the validity of the enterprise"

Related terms: uncertainty wonder
Similar spelling:   deviousness