From benign, on the model of malignant.
benignant (comparative more benignant, superlative most benignant)
- (now rare) Kind; gracious; favorable.
- 1749, Henry Fielding, Tom Jones, Folio Society 1973, p. 417:
- Here Nature appears in her richest attire, and Art, dressed with the modestest simplicity, attends her benignant mistress.