vehement

You can use the adjective vehement to describe an extremely strong, powerful, or intense emotion or force. The teenager argued for a much later curfew in a vehement speech to her parents; her parents responded with an equally vehement “No way!”

Vehement is from Latin and was originally applied to intense natural phenomena: pain, heat, wind, etc. It is now more commonly used for intense emotions or beliefs. With the adverb form, people can be vehemently in favor of something, but the more common usage is for people to be vehemently opposed to something. Many people, for example, are vehemently opposed to politicians they didn't vote for, other people spoiling the endings of movies or books, or someone else taking the last piece of chocolate. The stress is on the first syllable (VEE-uh-ment).

Definitions of vehement
  1. adjective
    marked by extreme intensity of emotions or convictions; inclined to react violently; fervid
    vehement dislike”
    synonyms: fierce, tearing, trigger-happy, violent
    intense
    possessing or displaying a distinctive feature to a heightened degree
  2. adjective
    characterized by great force or energy
    vehement deluges of rain”
    vehement clapping”
    “a vehement defense”
    Synonyms:
    strong
    having strength or power greater than average or expected
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