improper

a.不适当的；不合适的

impress...on, impressed, impression, impressionability, impressionable, impressionism, impressions, impressive, impressively, impressiveness, imprimatur, imprint, imprinting, imprison, imprisonment, improbability, improbable, improbably, improbity, impromptu, improper fraction, improperly, impropriety, improve, improve on, improvement, improvidence, improvident, improvidently, improvisation, improvise, improvised, imprudence, imprudent, imprudently, impudence, impudent, impudently, impugn, impuissance,