Worry

Rarer in this ranking, but still part of the 2,608-character published set.

More common than 縄 (Rope), less common than 陰 (Shade).

A heart on the left is tangled in vines and hair on the right -- your heart wrapped in messy vines and tangled hair is consumed by worry.

In words

悩むなやむ to be worried,to be troubledN3

悩みなやみ trouble(s);worry;distress;anguish;agony;problemN1

悩ますなやます to afflict;to torment;to harass;to molestN1

悩 is rank 1104 of 2,608 in published Japanese.