adj. deficient in originality or creativity; lacking powers of invention; "a sterile ideology lacking in originality"; "unimaginative development of a musical theme"; "uninspired writing"

adj. not original; not being or productive of something fresh and unusual; "the manuscript contained unoriginal emendations"; "his life had been unoriginal, conforming completely to the given pattern"- Gwethalyn Graham

adj. unproductive of success; "a fruitless search"; "futile years after her artistic peak"; "a sleeveless errand"; "a vain attempt"

adj. having no beneficial use or incapable of functioning usefully; "a kitchen full of useless gadgets"; "she is useless in an emergency"

adj. lacking sufficient water or rainfall; "an arid climate"; "a waterless well"; "miles of waterless country to cross"

adj. without offspring; "in some societies a childless woman is rejected by her tribesmen"

adj. incapable of reproducing; "an infertile couple"

adj. free of or using methods to keep free of pathological microorganisms; "a sterile operating area"; "aseptic surgical instruments"; "aseptic surgical techniques"

adj. capable of being foretold

adj. repeated regularly without thought or originality; "ready-made phrases"

adj. marked by or given to imitation; "acting is an imitative art"; "man is an imitative being"

adj. having the ability or power to create; "a creative imagination"

adj. producing or capable of producing (especially abundantly); "productive farmland"; "his productive years"; "a productive collaboration"

adj. (used of persons or artifacts) marked by independence and creativity in thought or action; "an imaginative use of material"; "the invention of the knitting frame by another ingenious English clergyman"- Lewis Mumford; "an ingenious device"; "had an inventive turn of mind"; "inventive ceramics"