Blunt

abrupt

(abrupt in address; plain; unceremonious)

idiot

(dull in understanding; slow of discernment)

obtus

(dull in understanding; slow of discernment)

sot

(dull in understanding; slow of discernment)

émoussé

(having a thick edge or point, not sharp)

blunt

(cigar filled with marijuana)

réprimer

(to repress or weaken)

émousser

(to dull the edge or point of, by making it thicker)