from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Marked by or full of sin; wicked.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Full of sin; wicked; iniquitous; unholy.
  • adj. Containing or consisting in sin; contrary to the laws of God.
  • adj. Of or relating to sin; sinny.
  • adj. Morally wrong.
  • adj. Evil.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Tainted with, or full of, sin; wicked; iniquitous; criminal; unholy.

from The Century Dictionary and Cyclopedia

  • Full of sin; wicked; iniquitous; unholy.
  • Containing or consisting in sin; contrary to the laws of God: as, sinful action; sinful thoughts; sinful words.
  • Contrary to propriety, discretion, wisdom, or the like; wrong; blameworthy.
  • Synonyms Illegal, Immoral, etc. (see criminal), bad, evil, unrighteous, ungodly, impious.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. characterized by iniquity; wicked because it is believed to be a sin
  • adj. far more than usual or expected
  • adj. having committed unrighteous acts


From Middle English sinful, synful, senful, sunful, from Old English synnful ("sinful, guilty, wicked, corrupt"), equivalent to sin +‎ -ful. Cognate with Dutch zondevol ("sinful"), German sündevoll ("sinful"), Danish syndefuld ("sinful"), Swedish syndfull ("sinful"), Icelandic syndfullur ("sinful"). (Wiktionary)


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