1. unimpeachable - Adjective
2. unimpeachable - Adjective Satellite
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.
Source: Webster's dictionaryhas lived a blameless life Source: Internet
of irreproachable character Source: Internet
an unimpeachable reputation Source: Internet
two unexceptionable witnesses Source: Internet
a judge's ethics should be unexceptionable Source: Internet
an unimpeachable source Source: Internet