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Webster 1913 Edition

Adj.

[Pref.

dis-

piteous

. Cf.

Full of despite; cruel; spiteful; pitiless.

Spenser.

–

Dis-pit′e-ous-ly

adv.

[Obs.]

Adj.

Having no pity; cruel; furious. [Not used.]

dispiteous ‎(comparative more dispiteous, superlative most dispiteous)

Without mercy or pity; pitiless, cruel.
- 1911, Max Beerbohm, Zuleika Dobson:
  “The unerring owls have hooted. The dispiteous and humorous gods have spoken.”