blunt

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Having a dull edge or end; not sharp.
• adjective Abrupt and often disconcertingly frank in speech: synonym: gruff.
• adjective Stark; unadorned.
• adjective Slow to perceive, understand, or feel; dull or insensitive.
• intransitive verb To dull the edge of (a knife, for example).
• intransitive verb To make less effective; weaken.
• intransitive verb To become blunt.
• noun A cigar whose interior has been hollowed out and filled with marijuana.
• noun A marijuana cigarette that has been rolled in a cigar's tobacco leaf wrapper instead of rolling paper.

from The Century Dictionary.

• To make blunt, as an edge or point; dull the edge or point of, as a knife or bodkin, by making it thicker.
• To weaken or deaden, as appetite, desire, or power of the mind; impair the force, keenness, or susceptibility of.
• To become blunt: as, the blade blunts easily.
• Obtuse, thick, or dull, as an angle, edge, or point; having an obtuse, thick, or dull edge or point, as a foil, sword, pencil, etc.; not sharp or acute.
• Dull in understanding; slow of discernment.
• Obtuse; free from sharp angularities, projections, or corners.
• Rough in manner or speech; rude; unpolished; hence, abrupt in address or manner; plain-spoken; unceremonious: applied to persons.
• Plain; plain-spoken; unceremonious or unconventional; direct; free from circumlocution: as, blunt truths; a blunt bearing.
• Hard to penetrate.
• Faint.
• Synonyms Brusk, bluff, uncivil, rude, uncourteous.
• noun A blunt sword for fencing; a foil.
• noun A needle of a grade shorter and less sharply pointed than a sharp. See needle.
• noun [Slang, and perhaps of different origin.] Money; ready money.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To dull the edge or point of, by making it thicker; to make blunt.
• transitive verb To repress or weaken, as any appetite, desire, or power of the mind; to impair the force, keenness, or susceptibility, of.
• noun obsolete A fencer's foil.
• noun A short needle with a strong point. See Needle.
• noun Cant Money.
• adjective Having a thick edge or point, as an instrument; dull; not sharp.
• adjective Dull in understanding; slow of discernment; stupid; -- opposed to acute.
• adjective Abrupt in address; plain; unceremonious; wanting the forms of civility; rough in manners or speech.
• adjective rare Hard to impress or penetrate.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Having a thick edge or point, as an instrument; not sharp.
• adjective Dull in understanding; slow of discernment; opposed to acute.
• adjective Abrupt in address; plain; unceremonious; wanting the forms of civility; rough in manners or speech.
• adjective Hard to impress or penetrate.
• adjective Slow or deficient in feeling: insensitive
• noun A fencer's foil.
• noun A short needle with a strong point.
• noun smoking A marijuana cigar.
• noun UK, slang, archaic, uncountable money
• verb To dull the edge or point of, by making it thicker; to make blunt.
• verb figuratively To repress or weaken, as any appetite, desire, or power of the mind; to impair the force, keenness, or susceptibility, of; as, to blunt the feelings.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb make numb or insensitive
• adjective used of a knife or other blade; not sharp
• verb make less intense
• adjective characterized by directness in manner or speech; without subtlety or evasion
• verb make less sharp
• adjective devoid of any qualifications or disguise or adornment