unimpeachable
-
(s) beyond doubt or reproach
- an unimpeachable source
-
(s) free of guilt; not subject to blame
- has lived a blameless life
- of irreproachable character
- an unimpeachable reputation
-
(s) completely acceptable; not open to exception or reproach
- two unexceptionable witnesses
- a judge's ethics should be unexceptionable