Answer:

raspiest

Answer	Crossword Clue
RASPIEST	Most rough-sounding
RASPIEST	Most harsh, as a voice
RASPIEST	Most in need of a lozenge

RASPIEST	Most hoarse-sounding
RASPIEST	Most grating

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.