te·di·ous 
(tēdē-əs)
(tēdē-əs)adj.
1. Tiresome by reason of length, slowness, or dullness; boring. See Synonyms at boring.
2. Obsolete Moving or progressing very slowly.
[Middle English, from Late Latin taediōsus, from Latin taedium, tedium.]
tedi·ous·ly adv.
tedi·ous·ness n.