Intermediate (B1)
IPA: /ˈmoʊtɪv.ləs/
KK: /ˈmoʊtɪv lɛs/
Definition
Lacking a reason or purpose for an action or behavior.
Example
His actions seemed motiveless, leaving everyone confused about his intentions.
Conversation

Did you hear about that incident at the park yesterday?

Yeah, it was so strange and seemed completely motiveless.

I know, right? It's unsettling when things happen for no reason.

Totally! I hope they figure out what really happened.
Synonyms & Antonyms
Synonyms
unmotivated
aimless
purposeless
Antonyms
motivated
driven
purposeful
Root Explanation
Motiveless → It is formed from "motive" (from Latin "motivus", meaning causing motion) and "-less" (meaning without). The word "motiveless" means without motive or reason for action.
Memory Tip
Think of being 'without' ('-less') a 'reason for action' ('motive') — that's what motiveless means.
Visually Confused Words
moveless
moteless
emotiveness
votiveness
thriveless
thieveless
movelessly
motherless