impossible
UK: ɪmˈpɒsəbl | US: ɪmˈpɑːsəbl
adj. not able to occur, exist, or be done
adj. extremely difficult to deal with or tolerate
The word "impossible" originates from Latin impossibilis, combining the negative prefix in- (later assimilated to im- before "p") with possibilis ("able to be done"). The root poss- derives from Latin posse ("to be able"), which itself comes from potis ("able") + esse ("to be"). Over time, impossibilis entered Old French as impossible, retaining its core meaning of "not able to be done," and was later adopted into Middle English. The morpheme -ible is a variant of -able, both signaling capability or susceptibility.
Climbing Mount Everest without training is nearly impossible.
The math problem seemed impossible until she found the solution.
It's impossible to predict the weather with absolute accuracy.
He made the impossible possible through sheer determination.
Don’t ask me to do the impossible—I have my limits too.