From WordNet (r) 3.0 (2006) [wn]:
dirty
adj 1: soiled or likely to soil with dirt or grime; "dirty
unswept sidewalks"; "a child in dirty overalls"; "dirty
slums"; "piles of dirty dishes"; "put his dirty feet on
the clean sheet"; "wore an unclean shirt"; "mining is a
dirty job"; "Cinderella did the dirty work while her
sisters preened themselves" [syn: dirty, soiled,
unclean] [ant: clean]
2: (of behavior or especially language) characterized by
obscenity or indecency; "dirty words"; "a dirty old man";
"dirty books and movies"; "boys telling dirty jokes"; "has a
dirty mouth" [ant: clean, unobjectionable]
3: vile; despicable; "a dirty (or lousy) trick"; "a filthy
traitor" [syn: dirty, filthy, lousy]
4: spreading pollution or contamination; especially radioactive
contamination; "the air near the foundry was always dirty";
"a dirty bomb releases enormous amounts of long-lived
radioactive fallout" [syn: dirty, contaminating] [ant:
clean, uncontaminating]
5: contaminated with infecting organisms; "dirty wounds";
"obliged to go into infected rooms"- Jane Austen [syn:
dirty, pestiferous]
6: (of color) discolored by impurities; not bright and clear;
"dirty" is often used in combination; "a dirty (or dingy)
white"; "the muddied grey of the sea"; "muddy colors";
"dirty-green walls"; "dirty-blonde hair" [syn: dirty,
dingy, muddied, muddy]
7: (of a manuscript) defaced with changes; "foul (or dirty)
copy" [syn: dirty, foul, marked-up]
8: obtained illegally or by improper means; "dirty money"; "ill-
gotten gains" [syn: dirty, ill-gotten]
9: expressing or revealing hostility or dislike; "dirty looks"
10: violating accepted standards or rules; "a dirty fighter";
"used foul means to gain power"; "a nasty unsporting serve";
"fined for unsportsmanlike behavior" [syn: {cheating(a)},
dirty, foul, unsporting, unsportsmanlike]
11: unethical or dishonest; "dirty police officers"; "a sordid
political campaign" [syn: dirty, sordid]
12: unpleasantly stormy; "there's dirty weather in the offing"
v 1: make soiled, filthy, or dirty; "don't soil your clothes
when you play outside!" [syn: dirty, soil, begrime,
grime, colly, bemire] [ant: clean, make clean]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Dirty \Dirt"y\, a. [Compar. Dirtier; superl. Dirtiest.]
1. Defiled with dirt; foul; nasty; filthy; not clean or pure;
serving to defile; as, dirty hands; dirty water; a dirty
white. --Spenser.
[1913 Webster]
2. Sullied; clouded; -- applied to color. --Locke.
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3. Sordid; base; groveling; as, a dirty fellow.
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The creature's at his dirty work again. --Pope.
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4. Sleety; gusty; stormy; as, dirty weather.
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Storms of wind, clouds of dust, an angry, dirty sea.
--M. Arnold.
Syn: Nasty; filthy; foul. See Nasty.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Dirty \Dirt"y\, v. t. [imp. & p. p. Dirtied; p. pr. & vb. n.
Dirtying.]
1. To foul; to make filthy; to soil; as, to dirty the clothes
or hands.
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2. To tarnish; to sully; to scandalize; -- said of
reputation, character, etc.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Colorless \Col"or*less\, a.
1. Without color; not distinguished by any hue; transparent;
as, colorless water; a colorless gas.
Note: [Narrower terms: {ashen, bloodless, livid, lurid, pale,
pallid, pasty, wan, waxen}; neutral; white] [Also
See: achromatic, colorless.]
[1913 Webster + WordNet 1.5]
2. Free from any manifestation of partial or peculiar
sentiment or feeling; not disclosing likes, dislikes,
prejudice, etc.; as, colorless music; a colorless style;
definitions should be colorless.
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3. having lost its normal color.
Note: [Narrower terms: {blanched, etiolate, etiolated,
whitened}; bleached, faded, washed-out, washy;
dimmed, dulled, grayed; dirty; {dull, sober,
somber, subfusc}] colored
Syn: colorless, uncolored, uncoloured.
[WordNet 1.5 +PJC]