Search Result for "motiveless": 
Wordnet 3.0

ADJECTIVE (1)

1. occurring without motivation or provocation;
- Example: "motiveless malignity"
- Example: "unprovoked and dastardly attack"- F.D.Roosevelt
[syn: motiveless, unprovoked, wanton]



The Collaborative International Dictionary of English v.0.48:

Motiveless \Mo"tive*less\, a.
   Destitute of a motive; not incited by a motive. --
   Mo"tive*less*ness, n. --G. Eliot.
   [1913 Webster]


WordNet (r) 3.0 (2006):

motiveless
    adj 1: occurring without motivation or provocation; "motiveless
           malignity"; "unprovoked and dastardly attack"-
           F.D.Roosevelt [syn: motiveless, unprovoked, wanton]