Blunt

1. a. Hard to impress or penetrate.
2. a. Having a thick edge or point, as an instrument; dull; not sharp.
3. a. Dull in understanding; slow of discernment; stupid; — opposed to acute.
4. a. Abrupt in address; plain; unceremonious; wanting the forms of civility; rough in manners or speech.
5. n. A short needle with a strong point. See Needle.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.