a. [ L. infestivus. See In- not, and Festive. ] Having no mirth; not festive or merry; dull; cheerless; gloomy; forlorn. [ R. ] [ 1913 Webster ]
a. [ L. infectivus pertaining to dyeing. ] Infectious. Beau. & Fl. [ 1913 Webster ]
True love . . . hath an infective power. Sir P. Sidney. [ 1913 Webster ]