朽廃

きゅうはい

decay, dilapidation (ruin)

腐朽

ふきゅう

deterioration, rot

不朽

ふきゅう

everlasting, immortal, eternal, immortality, imperishable

若朽

being young yet unambitious; being young but lacking spirit

老朽

ろうきゅう

superannuated, decrepitude

朽ち木

くちき

decayed tree, rotted tree, decayed wood, rotten wood

朽ちる

くちる

to rot, to decay

朽ち葉

くちば

decayed leaves

黄朽葉

きくちば

reddish-yellow (colour); russet

青朽葉

あおくちば

bluish russet

老朽化

ろうきゅうか

aging, wearing out, deterioration

朽ち葉色

くちばいろ くちはいろ

russet, tawny, yellow-brown

不朽不滅

ふきゅうふめつ

everlasting, eternal, immortal, imperishable, undying

乾燥腐朽

かんそうふきゅう

dry rot

永垂不朽

えいすいふきゅう

one's fame or achievements being passed down eternally

半壊

はんかい

partial destruction

壊劫

えこう

the kalpa of destruction (the third aeon of the universe)

壊す

こわす

to break, to destroy, to demolish

崩壊

ほうかい

decay