noun, noun which may take the genitive case particle 'no'
dullness; lack of luster; dinginess
Often used for skin that has lost brightness or clarity, but can also describe faded colors, cloudy surfaces, or a general lack of freshness. The glosses 'dirt' and 'soil' refer to a dingy, discolored appearance rather than literal soil.
I'm concerned about the dullness of my skin.
These curtains have become dingy from years of sun exposure.
Kana-only form; no kanji form is given.
Noun form of the verb くすむ (to become dull or dingy). The exact origin of くすむ is uncertain, but it is a native Japanese word.