ireful

adj

Etymology: From Middle English ireful; equivalent to ire + -ful.

1. Deeply angered but not outwardly displaying it; full of ire; angry; wroth.
2. Threatening to storm, or storming; louring or stormy.

   “... ireful clouds collect in stern array, / And bursting thunders speak the mighty fray;”

   “... ireful crimson sky, as he gropes his broken way home after the trial.”