The Collaborative International Dictionary
Improvidently
Improvidently \Im*prov"i*dent*ly\, adv.
In a improvident manner. ``Improvidently rash.''
--Drayton.
Wiktionary
improvidently
adv. In an improvident manner.
WordNet
improvidently
adv. in an improvident manner; "he lived improvidently for the moment" [ant: providently]
Usage examples of "improvidently".
In my opinion, Avdotya Romanovna is quite magnanimously and improvidently sacrificing herself in this affair for .