Intermediate (B1)
IPA: /ˈkɔːzləs/
KK: /ˈkɔːz.ləs/
Definition
Not based on any reason or cause; lacking justification or explanation.
Example
The accusations against him were causeless and unfounded.
Conversation

I don't understand why he got so upset about that comment.

Yeah, it seemed really causeless to me.

Exactly! It's like he was looking for a reason to be angry.

Sometimes people just react without a clear cause.
Synonyms & Antonyms
Synonyms
unfounded
baseless
irrational
Antonyms
justified
reasonable
grounded
Root Explanation
Causeless → It is formed from "cause" (from Latin "causa", meaning reason or motive) and "-less" (meaning without). The word "causeless" means without a reason or motive.
Memory Tip
Think of being 'without' ('-less') a 'reason' ('causa') — that's what causeless means.
Visually Confused Words
caseless
pauseless
ceaseless
casteless
useless
excuseless
creaseless
chaiseless