Synonyms of IDLE

run disconnected or idle

Also: tick over.

be idle; exist in a changeless situation

• LAZE13
• SLUG5
• STAGNATE9

without a basis in reason or fact

• BASELESS10
• GROUNDLESS12
• UNFOUNDED14
• UNWARRANTED15
• WILD8

not in active use

• UNUSED7

silly or trivial

• LIGHT9

lacking a sense of restraint or responsibility

• LOOSE5

not yielding a return

• DEAD6

not having a job

• JOBLESS16

Also: out of work.