/ ɪmˈpræktɪkəbl; NAmE / adjective
impossible or very difficult to do; not practical in a particular situation :
It would be impracticable for each member to be consulted on every occasion.
—compare impractical
OPP practicable
► im·prac·tic·abil·ity / ɪmˌpræktɪkəˈbɪləti; NAmE / noun [ U ]