blunt

make numb or insensitive

make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation

“Terror blunted her feelings”

characterized by directness in manner or speech; without subtlety or evasion

“blunt talking and straight shooting”

devoid of any qualifications or disguise or adornment

“the blunt truth”

make dull or blunt

having a broad or rounded end

“thick marks made by a blunt pencil”

make less intense

“blunted emotions”

make less sharp

“blunt the knives”

used of a knife or other blade; not sharp

“a blunt instrument”