1Having committed a fault or sin.
culpable, to blame, blameworthy, blameable, at fault, in the wrong, responsible, answerable, accountable, liable
- ‘the peccant officials fell on their knees’
2Diseased or causing disease.
unhealthy, ill, sick, unwell, ailing, infirm, sickly, unsound, unwholesome, infected, septic, contaminated, blighted, rotten, bad, abnormal
- ‘peccant matter’
Late 16th century (in peccant (sense 2)): from Latin peccant- ‘sinning’, from the verb peccare.
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