Dead Set Against (something)

Meaning of Idiom ‘Dead Set Against Something’

To be dead set against something means completely or utterly opposed.

Examples Of Use

“My parents were dead set against my becoming an artist. So, that is exactly what I did.”

“I am dead set against any type of voter suppression.”

“The legislature has always been dead set against this bill.”

Origin

In this idiom the word dead is used similar to the idioms dead wrong and dead easy to mean utterly or completely.

Set against is used to mean “opposed,” a usage dating to the 1400’s.  1Spears, Richard A. McGraw-Hill’s American Idioms Dictionary. Boston: McGraw Hill, 2008.,2Ammer, Christine. American Heritage Dictionary of Idioms. Boston: Houghton Mifflin Harcourt, 2013.

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Sources   [ + ]

1. Spears, Richard A. McGraw-Hill’s American Idioms Dictionary. Boston: McGraw Hill, 2008.
2. Ammer, Christine. American Heritage Dictionary of Idioms. Boston: Houghton Mifflin Harcourt, 2013.