Someone or something that causes fear is intimidating. Bullies are intimidating.

Anyone or anything that is fearsome, daunting, or terrifying could be called intimidating. Looking at a huge list of vocabulary words is intimidating. Any difficult job can be intimidating. Lots of people find public speaking intimidating. Climbing into the mouth of a volcano and trying to take a photograph for National Geographic would be extremely intimidating, because you could die, and if you don't, what if your pictures aren't that good?

Definitions of intimidating
  1. adjective
    discouraging through fear
    synonyms: daunting
    depriving of confidence or hope or enthusiasm and hence often deterring action
Word Family

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