The Collaborative International Dictionary
Impracticably
Impracticably \Im*prac"ti*ca*bly\, adv. In an impracticable manner.
Morality not impracticably rigid.
--Johnson.
Wiktionary
impracticably
adv. In an impracticable way.
WordNet
impracticably
adv. to an impracticable degree; "this is still impracticably high"
Usage examples of "impracticably".
Mooring Masts and Interchange Turrets had to reach so high that an impracticably wide-spreading base would have been necessary to support the weight, were they entirely made from iron.
A chain, which has been borne by fifty girls, would, of course, be impracticably heavy for five or six.