Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Hostile.
  • adj. Like a fiend; devilish.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Fiendlike; monstrous; devilish.

from The Century Dictionary and Cyclopedia

  • Hostile; inimical.
  • Fiend-like; devilish; fiendish.

Etymologies

Old English fēondliċ, corresponding to fiend +‎ -ly. (Wiktionary)

Examples

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