Adjective
requiring great physical effort
Source: WordNetWhen we love someone our love becomes demonstrable or real only through our exertion - through the fact that for that someone (or for ourself) we take an extra step or walk an extra mile. Love is not effortless. To the contrary, love is effortful. M. Scott Peck
The most effortful forms of slow thinking are those that require you to think fast. Daniel Kahneman
The Broadway debut of Julia Roberts, in a revival of Richard Greenberg’s “Three Days of Rain,” similarly caused a downpour at the box office, despite her own effortful but undistinguished performance. Source: Internet
The plane began to move, trundling forward so that the vista appeared to unfreeze into motion, flowing past the windows first slowly and then faster, until there was the feeling of effortful, half-hesitant lifting as it detached itself from the earth. Source: Internet