mon-mon
Being unable to sleep or rest because troubling thoughts keep churning. A state of mental anguish where you can't find peace.
💡Used when lying awake at night worrying, being tortured by regret, or unable to stop overthinking.
好きな人に告白するか、もんもんと悩み続けた。
I was tormented by whether or not to confess my feelings to the person I like.
She spent the whole night ___ agonizing over the difficult decision.
彼女は一晩中○○とその難しい決断に悩んだ。