abruptus

Etymology
Perfect passive participle of, from +.

Participle

 * 1) broken off, torn, severed, having been broken off
 * 2)  broken off; precipitous, steep, abrupt
 * 3)  cut short, broken off, having been cut short
 * 4)  broken off; broken, disconnected, abrupt

Declension

 * comparative: abruptior, superlative: abruptissimus