otiose

serving no useful purpose; having no excuse for being

• “otiose lines in a play”
• “advice is wasted words”

producing no result or effect

• “a futile effort”
• “the therapy was ineffectual”
• “an otiose undertaking”
• “an unavailing attempt”

disinclined to work or exertion

• “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”