Definition of "direful"

direful

adjective
comparative more direful, superlative most direful
1. Fearful, terrible.
  Quotations
  I haue beene wooed, as I intreat thee now, / Euen by the ſterne, and direfull God of warre, / VVhoſe ſinowie necke in battel nere did bow, / VVho conquers where he comes in euery iarre; […]
  1593, [William Shakespeare], Venus and Adonis, London: […] Richard Field, […]; 2nd edition, London: […] Richard Field, […], 1594, [verse 17], lines
  read what destiny / Or other dyrefull hap from heaven or hell / Hath wrought this wicked deed […].
  1596, Edmund Spenser, “Book VI, Canto XI”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie
  "As whence the sun gins his reflection, shipwrecking storms and direful thunders break."
  c. 1606 (date written), William Shakespeare, “The Tragedie of Macbeth”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act I, scene ii]