Impracticable

[im-prak-ti-kuh-buh l] /ɪmˈpræk tɪ kə bəl/

adjective
1.
not ; incapable of being put into practice with the available means:
an impracticable plan.
2.
unsuitable for practical use or purposes, as a device or material.
3.
(of ground, places, etc.) impassable.
4.
(of persons) hard to deal with because of stubbornness, stupidity, etc.
/ɪmˈpræktɪkəbəl/
adjective
1.
incapable of being put into practice or accomplished; not feasible
2.
unsuitable for a desired use; unfit
3.
an archaic word for intractable
adj.

“incapable of being done,” 1670s, from assimilated form of in- (1) “not, opposite of” + practicable. Earlier in a sense of “impassable” (1650s).

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