intimidating
adj.-
1 frightening or overwhelming (adj.) B2 Upper Intermediatemaking you feel nervous or worried because something is very big, difficult, or powerful.
inducing fear or a loss of confidence through an appearance of superior strength, size, or difficulty.
ExampleThe huge library was a bit intimidating for a new student on their first day.
ExampleThe prospect of presenting her research to a panel of Nobel laureates was deeply intimidating, despite her years of preparation.
PitfallI felt very intimidating when I walked into the interview.I felt very intimidated when I walked into the interview.Use 'intimidating' to describe the thing that causes the fear (the interview) and 'intimidated' to describe how you feel.
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2 threatening in manner (adj.) B2 Upper Intermediatedescribing a person who acts in a way that makes others feel scared or small.
characterised by a manner or physical presence that suggests a threat or a desire to dominate others.
ExampleHe was a tall man with a very intimidating voice that made everyone go quiet.
ExampleThe interrogator maintained an intimidating silence, leaning forward just enough to make the suspect feel physically crowded.