IPA: /ˈdʒɔɪləsli/
KK: /ˈdʒɔɪləsli/
In a way that shows no happiness or pleasure.
She completed her tasks joylessly, without any enthusiasm.
Joylessly → It is formed from "joy" (from Old French *joie*, meaning happiness or delight) and "-less" (meaning without). The word "joylessly" means without joy or happiness.
Think of being 'without' ('-less') happiness ('joy') — that's why joylessly means lacking joy.
No commonly confused words.