unimpeachably
unim·peac·hably
adverb
1.
without question
- “Fred Winter is unquestionably the jockey to follow”
- “they hired unimpeachably first-rate faculty members”
Origin
From unimpeachable + -ly.
Related words
Pertaining to
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.