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

  • adj. Hideous; dreadful: "Horrendous explosions shook the whole city” ( Howard Kaplan).

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Extremely bad; awful; terrible.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Fearful; frightful.

from The Century Dictionary and Cyclopedia

  • Fearful; frightful.

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

  • adj. causing fear or dread or terror


From Latin horrendus, from gerundive of horrēre, to tremble.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin horrendus, future participle of horrēre ("to dread"). (Wiktionary)



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