The difference between Blunt and Coarse

When used as adjectives, blunt means having a thick edge or point, whereas coarse means composed of large parts or particles.

Blunt is also noun with the meaning: a fencer's practice foil with a soft tip.

Blunt is also verb with the meaning: to dull the edge or point of, by making it thicker.

check bellow for the other definitions of Blunt and Coarse

Blunt as an adjective:

Having a thick edge or point; not sharp.
Blunt as an adjective:

Dull in understanding; slow of discernment; opposed to acute.
Blunt as an adjective:

Abrupt in address; plain; unceremonious; wanting the forms of civility; rough in manners or speech.

Examples:

"the blunt admission that he had never liked my company"
Blunt as an adjective:

Hard to impress or penetrate.
Blunt as an adjective:

Slow or deficient in feeling: insensitive.

Blunt as a noun:

A fencer's practice foil with a soft tip.
Blunt as a noun:

A short needle with a strong point.
Blunt as a noun (smoking):

A marijuana cigar.
Blunt as a noun (UK, slang, archaic, uncountable):

money
Blunt as a noun:

A playboating move resembling a cartwheel performed on a wave.

Blunt as a verb:

To dull the edge or point of, by making it thicker; to make blunt.
Blunt as a verb (figuratively):

To repress or weaken; to impair the force, keenness, or susceptibility, of

Examples:

"It blunted my appetite."

"My feeling towards her have been blunted."

Coarse as an adjective:

Composed of large parts or particles; of inferior quality or appearance; not fine in material or close in texture.
Coarse as an adjective:

Lacking refinement, taste or delicacy

Examples:

"coarse manners"

"coarse language"