| English adjective: unimpeachable | |||
| 1. | unimpeachable beyond doubt or reproach | ||
| Samples | An unimpeachable source. | ||
| Similar | unquestionable | ||
| Antonyms | questionable | ||
| 2. | unimpeachable free of guilt; not subject to blame | ||
| Samples | Has lived a blameless life. Of irreproachable character. An unimpeachable reputation. | ||
| Synonyms | blameless, inculpable, irreproachable | ||
| Similar | clean-handed, guiltless, innocent | ||
| Antonyms | guilty | ||
| 3. | unimpeachable completely acceptable; not open to exception or reproach | ||
| Samples | Two unexceptionable witnesses. A judge's ethics should be unexceptionable. | ||
| Synonyms | unexceptionable | ||
| Similar | acceptable | ||
| Antonyms | unacceptable | ||