Definition: lacking interest or significance or impact
Usage: an insipid personality; jejune novel
Similar words: uninteresting
Definition: arousing no interest or attention or curiosity or excitement
Usage: a very uninteresting account of her trip
Synonyms: puerile, adolescent, jejune, juvenile
Definition: displaying or suggesting a lack of maturity
Usage: adolescent insecurity; jejune responses to our problems; their behavior was juvenile; puerile jokes
Synonyms: jejune, insubstantial
Definition: lacking in nutritive value
Usage: the jejune diets of the very poor
Similar words: unwholesome
Definition: detrimental to physical or moral well-being
Usage: unwholesome food; unwholesome habits like smoking