take it upon oneself
To decide all by yourself to do something, even when nobody told you to.
Meanings
To decide independently to do something without being asked, sometimes implying presumption.
"He took it upon himself to rewrite the entire report without consulting anyone on the team."
To accept personal responsibility for an action or outcome, showing admirable initiative.
"She took it upon herself to mentor the new employees even though it wasn't part of her job description."
Usually followed by an infinitive: 'took it upon herself to organize the event.' Carries a slightly presumptuous or self-important tone in some contexts, but can also express admirable initiative. More formal than 'take it on yourself.'
Commonly used with
Forms
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Synonyms
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