adj. Of, relating to, or characterized by denunciatory or abusive language.
[From Middle English invectif, denunciatory, from Old French, from Late Latin invectīvus, reproachful, abusive, from Latin invectus, past participle of invehī, to inveigh against; see inveigh.] in·vec'tive·ly adv., in·vec'tive·ness n.
1523, from a M.E. adj. (1430), "characterized by denunciatory language," from L.L. invectivus "abusive," from L. invectus, pp. of invehi "to attack with words" (see inveigh). For nuances of usage, see humor.