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Webster 1913 Edition

Adj.

[From

Injurious; wrongful.

[Obs.]

“Tortious power.”

Spenser.

(Law)

Imploying tort, or privat injury for which the law gives damages; involing tort.

Adj.

[from tort.] Injurious; done by wrong.

In law, implying tort, or injury for which the law gives damages.

tortious ‎(comparative more tortious, superlative most tortious)

(obsolete) Wrongful; harmful.
- 1596, Edmund Spenser, The Faerie Queene, IV.9:
  he found great store of hoorded threasure, / The which that tyrant gathered had by wrong / And tortious powre […].
(law) Of, pertaining to, or characteristic of torts.