Intermediate (B1)
IPA: /ˈmɜːrθfəli/
KK: /ˈmɜrθfəli/
Definition
In a way that shows joy and happiness; cheerfully.
Example
The children laughed mirthfully as they played in the park.
Conversation

I saw a comedy show last night that had everyone laughing so mirthfully.

That sounds like a blast! I love shows that can make you laugh like that.

Yeah, it was great to see people enjoying themselves so much.

I'll have to check it out — laughter is the best!
Synonyms & Antonyms
Synonyms
joyfully
cheerfully
gleefully
Antonyms
sorrowfully
sadly
mournfully
Root Explanation
Mirthfully → It is formed from "mirth" (from Old English *myrth*, meaning joy or amusement) and "-fully" (meaning in a manner full of). The word "mirthfully" means in a manner full of joy or amusement.
Memory Tip
Think of 'mirth' as joy and remember that 'mirthfully' means to act in a joyful way.
Visually Confused Words
unmirthfully
ruthfully
wrothfully
wrathfully
unmirthful
truthfully
faithfully