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Webster 1913 Edition

Noun.

Lack of preparation.

[Obs.]

Hooker.

Noun.

[in and preparation.] Want of preparation; unpreparedness; unreadiness. [Little used.]

See also: impréparation

impreparation ‎(uncountable)

(obsolete) Lack of preparation.
- Richard Hooker
  Which impreparation and unreadiness when then they find in us, they turn it to the soothing up of themselves in that cursed fancy, whereby they would fain believe that the hearty devotion of such as indeed fear God is nothing else but a kind of harmless error […]