impact (up)on (someone or something)(redirected from impact upon)
impact (up)on (someone or something)
To affect or influence someone or something. Of course your decision impacts on me—I'm your wife! Don't worry, your grade on that assignment won't impact upon your overall grade for the semester.
See also: impact
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
impact (up)on someone or something
[for something] to have an effect on someone or something. (Upon is formal and less commonly used than on.) This plant closing will impact upon the local economy for years to come. The day's troubles impacted on Rachel quite seriously.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
To have an effect on someone or something: The results of the election will impact on upcoming legislation.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.