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Webster 1913 Edition

Adj.

Unforeseen; unexpected; not provided against; unprepared.

[Obs.]

All

improvided

for dread of death.

E. Hall.

Adj.

[L. improvisus; in and provideo, to foresee or provide.] Unforeseen; unexpected; not provided against.

improvided ‎(comparative more improvided, superlative most improvided)

Unforeseen.
- 1590, Edmund Spenser, The Faerie Queene, I.xii:
  she suborned hath / This craftie messenger with letters vaine, / To worke new woe and improuided scath [...].