Intermediate (B1)
IPA: /ˈmɜːrθfəl.nəs/
KK: /ˈmɜrθfəl/
Definition
The quality or state of being joyful and full of laughter.
Example
Her mirthfulness was contagious, making everyone around her smile.
Conversation

I love how your jokes always bring so much mirthfulness to our gatherings.

Thanks! I think laughter really makes a difference in keeping everyone happy.

Absolutely! It's great to see everyone smiling and enjoying themselves.

For sure, a little mirthfulness goes a long way in brightening the mood.
Synonyms & Antonyms
Root Explanation
Mirthfulness → It is formed from "mirth" (from Old English *myrth*, meaning joy or amusement) and "-fulness" (meaning the state of being full of). The word "mirthfulness" means the state of being full of joy or amusement.
Memory Tip
Think of 'mirth' as joy and remember that 'mirthfulness' means being full of joy.
Visually Confused Words
unmirthfulness
ruthfulness
wrathfulness
worthfulness
truthfulness
faithfulness
irefulness
fitfulness