Otiose

[Sarah]

Being at leisure or ease; unemployed; indolent; idle. Otioseassent. Paley.The true keeping of the Sabbath was not that otiose and unAlford.

[Sarah]

1)lazy
2)worthless
3)not effective

[Greta]

1. not effective: with no useful result or practical purpose
   2. worthless: with little or no value
   3. lazy: [unwilling] or [uninterested] in working or being active ([archaic])

[Kit]

Serving no practical purpose or result.