serving no useful purpose; having no excuse for being;
\\\"otiose lines in a play\\\"
\\\"advice is wasted words\\\"
\\\"a pointless remark\\\"
\\\"a life essentially purposeless\\\"
\\\"senseless violence\\\"
\\\"faineant kings under whose rule the country languished\\\"
\\\"an indolent hanger-on\\\"
\\\"too lazy to wash the dishes\\\"
\\\"shiftless idle youth\\\"
\\\"slothful employees\\\"
\\\"the unemployed are not necessarily work-shy\\\"
造句
用作形容詞(adj.)
Because he does not know the skill of fishing, light has fishing rod is otiose. 因為他不懂釣魚的技巧，光有魚竿是沒有用的。
常用短語
Both explanations can be seen to be erroneous and indeed otiose.