stress out

phrasal verb
stressed out; stressing out; stresses out

Definition of stress out

informal
: to feel very worried or anxious or to make (someone) feel very worried or anxious I hate being around her when she's stressing out. Work is stressing him out.

More from Merriam-Webster on stress out

Nglish: Translation of stress out for Spanish Speakers

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appealing forcibly to the mind or reason

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