PESTILENTIALLY
Scrabble letter values: P3E1S1T1I1L1E1N1T1I1A1L1L1Y4 = 19
Definition
PESTILENTIALLY is the adverb form of PESTILENTIAL.
adjective PESTILENTIAL: likely to spread and cause an epidemic disease.
Synonyms of PESTILENTIAL: pestilent, pestiferous, plaguey