verb (used with object), mo·ti·vat·ed, mo·ti·vat·ing.
Examples from the Web for motivator
While his health was a motivator, many also speculate he did it with an eye on a future presidential run.Should We Judge Hillary’s Hair or Christie’s Weight?|Keli Goff|January 6, 2014|DAILY BEAST
That goes a long way here in South Carolina and could trump party loyalty as a motivator.South Carolina Special Election Has All the Makings of a Scandal-Filled Telenovela|John Avlon|April 3, 2013|DAILY BEAST
Reputational harm may be more of a motivator than the sanctions.Where Modern Slavery Thrives: State Department Unveils Trafficking Report|Ilan Greenberg|June 19, 2012|DAILY BEAST
I'm sure those are both on the table, but when someone is sitting on nine digits, that kind of package isn't a motivator.
British Dictionary definitions for motivator
Word Origin and History for motivator (1 of 2)
1917, agent noun in Latin form from motivate (v.).