unimpeachable[Anglais]

adjectif satellite
1 : beyond doubt or reproach; "an unimpeachable source"
2 : completely acceptable; not open to exception or reproach; "two unexceptionable witnesses"; "a judge's ethics should be unexceptionable"
3 : free of guilt; not subject to blame; "has lived a blameless life"; "of irreproachable character"; "an unimpeachable reputation"