Dictionary / Vocabulary / 孤独
こどく
solitude; loneliness; isolation
JLPT N1 common word
孤独な人は、他人を恐れるから一人なのだ。
Every person who is alone is alone because they are afraid of others.
遊び相手がなくて孤独だった。
I was lonely, with nobody to play with.
無為なれば孤独を避けよ。孤独なれば無為を避けよ。
If you are idle, be not solitary, if you are solitary, be not idle.