indubitable
in·du·bi·table
adjective
1.
Origin
Either from French indubitable or Latin indubitābilis. By surface analysis, in- + dubitable.
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.