certitude
cer·ti·tude
noun
1.
total certainty or greater certainty than circumstances warrant
Origin
From Middle French certitude, from Late Latin certitūdō, from Latin certus.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.