terrible

Etymology

From Middle English terrible, from Old French terrible, from Latin terribilis (“frightful”), from terreō (“I frighten, terrify, alarm; I deter by terror, scare (away)”). Compare terror, deter. Equivalent to terror + -ible.

adj

1. Dreadful; causing terror, alarm and fear; awesome
   The witch laid a terrible curse on him.
   People who have not been in Narnia sometimes think that a thing cannot be good and terrible at the same time. If the children had ever thought so, they were cured of it now. For when they tried to look at Aslan's face they just caught a glimpse of the golden mane and the great, royal, solemn, overwhelming eyes; and then they found they couldn't look at him and went all trembly. 1950, C. S. Lewis, The Lion, the Witch and the Wardrobe
2. Formidable, powerful.
   "He is the right sort of man for a labourer, but he is a terrible eater, to be sure," thought the farmer. 1886, Peter Christen Asbjørnsen, translated by H.L. Brækstad, Folk and Fairy Tales, page 96
3. Intense; extreme in degree or extent.
   He paid a terrible price for his life of drinking.
   ‘Then the father has a great fight with his terrible conscience,’ said Munday with granite seriousness. ‘Should he make a row with the police […]? Or should he say nothing about it and condone brutality for fear of appearing in the newspapers? 1963, Margery Allingham, chapter 18, in The China Governess
4. Unpleasant; disagreeable.
   The food was terrible, but it was free.
5. Very bad; lousy.
   Whatever he thinks, he is a terrible driver.
   The openly ridiculous plot has The Pirate Captain (Hugh Grant) scheming to win the Pirate Of The Year competition, even though he’s a terrible pirate, far outclassed by rivals voiced by Jeremy Piven and Salma Hayek. April 26, 2012, Tasha Robinson, “Film: Reviews: The Pirates! Band Of Misfits”, in The Onion AV Club

adv

1. (colloquial, dialect) In a terrible way; to a terrible extent; terribly; awfully.
   ‘Oh, terrible bad, sir, terrible deep the snow is,’ said the hedgehog. 1908, Kenneth Grahame, The Wind in the Willows, Ware: Wordsworth Classics, published 1993, page 59