truculent

/ˈtrʌkjələnt/
adjective
  1. Eager to argue, fight, or show anger; aggressively hostile.
    • His truculent attitude during the meeting made it hard for anyone to work with him.
    • The truculent dog growled at every passerby, making the neighbors nervous.
    • The truculent customer shouted at the cashier over a small mistake on the receipt.
  2. Expressing or showing a fierce, harsh, or unpleasant quality (used about behavior, words, or appearance).
    • She gave a truculent glare that silenced the room instantly.
    • The politician's truculent speech only deepened the divide between the two groups.
    • The truculent tone of his email surprised everyone who knew him as a calm person.
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