Most grisly; the superlative form of grisly, indicating the most gruesome or horrifying in appearance or nature.
Superlative form of grisly, using the -est suffix (most) to indicate the highest degree of gruesomeness.
Superlatives like 'grisliest' let us express extreme reactions—this is the word you use when you've seen something so horrific that normal 'grisly' isn't enough.
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