Antonyms of adj motiveless

1 sense of motiveless

Sense 1
motiveless, unprovoked, wanton -- (occurring without motivation or provocation; "motiveless malignity"; "unprovoked and dastardly attack"- F.D.Roosevelt)

INDIRECT (VIA unmotivated) -> motivated -- (provided with a motive or given incentive for action; "a highly motivated child can learn almost anything"; "a group of politically motivated men")

Similarity of adj motiveless

1 sense of motiveless

Sense 1
motiveless, unprovoked, wanton -- (occurring without motivation or provocation; "motiveless malignity"; "unprovoked and dastardly attack"- F.D.Roosevelt)
       => unmotivated (vs. motivated) -- (without motivation)

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