Entry 1 sense Webster, 1913 Tedious /tēd'-ē-əs/ · Te·di·ous · IPA /ˈti.di.əs/ 01 a. Involving tedium; tiresome from continuance, prolixity, slowness, or the like; wearisome. 1. Involving tedium; tiresome from continuance, prolixity, slowness, or the like; wearisome. “I see a man's life is a tedious one.” — Shak. “I would not be tedious to the court.” — Bunyan. Syn. Wearisome; fatiguing. See Irksome.