un·mo·ti·vat·ed 
(ŭn-mōtə-vā′tĭd)
(ŭn-mōtə-vā′tĭd)adj.
1. Having no incentive or interest: unmotivated students.
2. Having no clear motive or reason: an unmotivated plot twist.
- irresponsive
- irresponsively
- irresponsiveness
- irretrievability
- irretrievable
- irretrievableness
- irretrievably
- irreverence
- irreverent
- irreverently
- irreversibility
- irreversible
- irreversibleness
- irreversibly
- irrevocability
- irrevocable
- irrevocableness
- irrevocably
- irrigable
- irrigate
- irrigation
- irrigational
- irrigator
- irritability
- irritable