adj ·Moderate ·College level

Definitions

Adjective

1. 1
   Extremely bad; awful; terrible.

   "There was horrendous carnage at the scene of the plane crash."

Adjective

1. 1
   causing fear or dread or terror wordnet

Synonyms

All synonyms

awfulappallingarrantastoundingatrociousawe inspiring

Antonyms

All antonyms

finger-lickin' goodfireballgrousepositive

Example

More examples

"It was a horrendous experience."

Etymology

Borrowed from Latin horrendus, future passive participle (gerundive) of horreō (“I dread”) + -ous.

Related phrases

down horrendous

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.