blunt

adjective:

1. Slow or deficient in feeling: insensitive.
2. Having a thick edge or point; not sharp.
3. Dull in understanding; slow of discernment; opposed to acute.
4. Hard to impress or penetrate.
5. Abrupt in address; plain; unceremonious; wanting the forms of civility; rough in manners or speech.

noun:

1. A playboating move resembling a cartwheel performed on a wave.
2. Money.
3. A fencer's practice foil with a soft tip.
4. A marijuana cigar.
5. A short needle with a strong point.

verb:

1. To dull the edge or point of, by making it thicker; to make blunt.
2. To repress or weaken; to impair the force, keenness, or susceptibility, of.