Adjectives

(s)otiose, pointless, purposeless, senseless, superfluous, wastedserving 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”
(s)futile, ineffectual, otiose, unavailing, meaninglessproducing no result or effect“a futile effort”, “the therapy was ineffectual”, “an otiose undertaking”, “an unavailing attempt”
(s)faineant, indolent, lazy, otiose, slothful, work-shydisinclined to work or exertion“faineant kings under whose rule the country languished”, “an indolent hanger-on”, “too lazy to wash the dishes”, “slothful employees”, “the unemployed are not necessarily work-shy”