mordacious
1. [ adjective ] capable of wounding
Synonyms: biting barbed pungent nipping
Examples:

"a barbed compliment" "a biting aphorism" "pungent satire"

Related terms: sarcastic
2. [ adjective ] biting or given to biting
Examples:

"they deliberately gave me a skittish and mordacious mount"

Related terms: dangerous
Similar spelling:   mordaciously
  mordacity
  Mordecai