Upper-Intermediate (B2)
IPA: /ˈmɜːrθləsli/
KK: /ˈmɜrθləsli/
Definition
In a way that shows no joy or happiness; done without laughter or cheerfulness.
Example
He spoke mirthlessly, as if the joy had been taken from his words.
Conversation

Did you see the movie last night?

Yeah, I did, but it ended so mirthlessly that I felt a bit down afterward.

I know what you mean; I was expecting something more uplifting.

Exactly! It was just so heavy without any real joy.
Synonyms & Antonyms
Antonyms
cheerfully
joyfully
happily
Root Explanation
Mirthlessly → It is formed from "mirth" (from Old English "myrth", meaning joy or amusement) and "-less" (meaning without). The word "mirthlessly" means without joy or amusement.
Memory Tip
Think of 'mirth' as joy and remember that 'mirthlessly' means lacking that joy.
Visually Confused Words
ruthlessly
pithlessly
worthlessly
truthlessly
matchlessly
limitlessly
faithlessly
witlessly