Solution

HARSHLY

2 clues

Roughly

Word class: Adverb
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles

Other solutions to Roughly

Severely

Word class: Adverb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Severely

Words are categorized by artificial intelligence: there can be mistakes.