acerbic harsh impatient pointed sharply stinging
adamantine astringent awful difficult firm grim hard-time hard heavy hurt implacable inclement intense maximum monastic peppery precarious restrain rigorous rocky severe sharp sternly stern strict torrid trying
bad bitter bother cruel miss painful pain piquant sorry spicy taxing unbearable
biting corrosive cutting mercilessly mordant relentless tacky ungenerous vitriolic waspish