chemistry (branch of natural science)

mutual, reciprocal, with one another / appearance, look

nature, personality / fate, destiny / a habit, custom, or practice / the good and bad of a person; especially, one's faults

minister of state

appearance, how something looks / an aspect of something / (grammar) grammatical aspect / (physics) a phase, as of matter / (ikebana) the central supporting branch of an ikebana arrangement

chemistry (branch of natural science)

to be concerned about; to be interested in; to be bothered by; to have a problem with

letter challenging someone to a duel

(idiomatic) Alternative form of 気が気でない

(idiomatic) very anxious, very worried, feeling uneasy; can't help but be worried