adj. 1
Unclean; covered with or containing unpleasant substances such as dirt or grime.
Despite a walk in the rain, my shoes weren't too dirty.
adj. 2
Morally unclean; obscene or indecent, especially sexually.
At the reception, Uncle Nick got drunk and told dirty jokes to the bridesmaids.
v. 1
To make (something) dirty.
v. 2
To stain or tarnish (somebody) with dishonor.

Related words

Word family: dirtily dirtiness
Phrases: dirty money dirty word dirty bomb dirty look dirty dancing dirty laundry dirty magazine do someone dirty
Is a kind of: spoil

Forms

Past participle: dirtied
e.g. dirtied → muddied, sullied, corrupted, stained…

From the opposite of dirty, on the left, to its strongest synonyms, on the right.

Use in printed books, per decade from 1850 to 2019.

4 letters: mean¹, dark¹, base¹, spot¹, soil¹, foul¹, vile¹, lewd¹, slur¹, smut¹, icky
5 letters: black¹, nasty², stain¹, muddy², smear¹, lousy², sully², grime¹, taint¹, dingy², bawdy², ratty², mucky²
6 letters: little², unfair², filthy², erotic³, vulgar², shabby², soiled¹, sordid², impure², shoddy², grubby², smudge¹, defile, grungy²
7 letters: corrupt², naughty², obscene², slander², pitiful³, unclean², profane², tarnish², raunchy², squalid², defiled, sullied², muddied², blacken²
8 letters: cheating², indecent³, unwashed², besmirch, scabrous
9 letters: dishonest³, unethical⁴, salacious³
10 letters: despicable⁴, bedraggled³, unsporting
11 letters: blasphemous³, contaminate⁴
12 letters: dishonorable⁵, contemptible⁴, scatological⁵
13 letters: dishonourable
15 letters: unsportsmanlike⁴

The small number after each word is its number of syllables (nasty² = 2 syllables).