idle adj.
1 lazy
VERBS be | become
ADV. very | bone (informal), totally She never lifts a finger to help. She's bone idle. | rather
2 not in use
VERBS be, lie, sit, stand Half their machines are lying idle. The pumps are standing idle. | remain | leave sth, make sth The land was left idle for years.
You can also check other dicts: idle (English, 中文解释 ), wordnet sense, Collins Definition