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1. Sinful; guilty.
2. Violating a rule or an accepted practice; erring.

[Latin peccāns, peccant-, present participle of peccāre, to sin; see ped- in Indo-European roots.]

pec′can·cy n.
pec′cant·ly adv.


1. (Ecclesiastical Terms) guilty of an offence; corrupt
2. violating or disregarding a rule; faulty
3. (Pathology) producing disease; morbid
[C17: from Latin peccans, from peccāre to sin]
ˈpeccancy n
ˈpeccantly adv


(ˈpɛk ənt)

1. sinning; guilty of a moral offense.
2. violating a rule or principle; faulty; wrong.
[1595–1605; < Latin peccant- (s. of peccāns), present participle of peccāre to err, offend; see -ant]
pec′can•cy, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.peccant - liable to sin; "a frail and peccable mortal"- Sir Walter Scott
wicked - morally bad in principle or practice


References in classic literature ?
It is allowed, that senates and great councils are often troubled with redundant, ebullient, and other peccant humours; with many diseases of the head, and more of the heart; with strong convulsions, with grievous contractions of the nerves and sinews in both hands, but especially the right; with spleen, flatus, vertigos, and deliriums; with scrofulous tumours, full of fetid purulent matter; with sour frothy ructations: with canine appetites, and crudeness of digestion, besides many others, needless to mention.
But let us call to Synod all the Blest Through Heav'ns wide bounds; from them I will not hide My judgments, how with Mankind I proceed, As how with peccant Angels late they saw; And in thir state, though firm, stood more confirmd.
Now Eastern loses money hand over fist weighed down by peccant corruption.
From these therapeutic and surgical procedures, which aim to dissipate or evacuate peccant matter, the anatomical, physiological, and pathological presuppositions of the author can readily be reconstructed.
Thus, mental disorder was treated on the basis of whatever physical illness was thought to underlie the mind's distress; physical illness was itself attributed to causes of constitutional delicacy, peccant humors, and miasmatic exposure, with Humorism providing the model for treatment (Waller 9-11).
Nil mirum <si> in his exercitationibus doctores peccant, qui necesse habent cum insanientibus furere.