1) At leisure 2) Being at leisure 3) Functionless 4) Futile 5) Hardly utile 6) Having no excuse for being 7) Idle 8) Idle; futile 9) Indolent 10) Indolent, lazy 11) Ineffective 12) Ineffective or futile 13) Lacking effect 14) Lazy 15) Like a couch potato 16) No-account 17) Of no use 18) Pointless 19) Producing no result or effect Found on https://www.crosswordclues.com/clue/otiose
O'ti·ose` adjective [ Latin otiosus , from otium ease.] Being at leisure or ease; unemployed; indolent; idle. ' Otiose assent.' Paley. « The true keeping of the Sabbath was not that otiose and un...rofitable cessation from even good deeds which they would enfor... Found on http://www.encyclo.co.uk/webster/O/40