Answer: grimmer

AnswerCrossword Clue
GRIMMERMade of sterner stuff
GRIMMERMore dismal
grimmerastly, repellent, or sinister in character a grim tale
grimmerfierce in disposition or action savage
grimmerGRIM, stern and unrelenting
grimmerflinching unyielding grim determination
grimmerern or forbidding in action or appearance a grim taskmaster