Definitions for unimpeachableˌʌn ɪmˈpi tʃə bəl
Random House Webster's College Dictionary
un•im•peach•a•bleˌʌn ɪmˈpi tʃə bəl(adj.)
above suspicion; impossible to discredit; impeccable.
Origin of unimpeachable:
1775–85
un`im•peach′a•bly(adv.)
Princeton's WordNet
unimpeachable(adj)
beyond doubt or reproach
"an unimpeachable source"
blameless, inculpable, irreproachable, unimpeachable(adj)
free of guilt; not subject to blame
"has lived a blameless life"; "of irreproachable character"; "an unimpeachable reputation"
unexceptionable, unimpeachable(adj)
completely acceptable; not open to exception or reproach
"two unexceptionable witnesses"; "a judge's ethics should be unexceptionable"
Wiktionary
unimpeachable(Adjective)
not able to be impeached or reproached
unimpeachable(Adjective)
blameless
unimpeachable(Adjective)
beyond doubt
Webster Dictionary
Unimpeachable(adj)
not impeachable; not to be called in question; exempt from liability to accusation; free from stain, guilt, or fault; irreproachable; blameless; as, an unimpeachable reputation; unimpeachable testimony
Citation
Use the citation below to add this definition to your bibliography:
"unimpeachable." Definitions.net. STANDS4 LLC, 2013. Web. 20 May 2013. <http://www.definitions.net/definition/unimpeachable>.

