You searched for: “irreproachable
irreproachable (adjective) (not comparsble)
Not deserving to be criticised or reprimanded; free from guilt: Mary's conduct during the meeting as the head of the English department was totally irreproachable and faultless.

Tom's parents gave him irreproachable advice and counsel when they strongly recommended that he take his courses seriously at school.

This entry is located in the following units: -able (page 24) prop-, proach-, proximo-, proxim- (page 1)