Similar words
dreckig
Dreckig is more colloquial and coarse; schmutzig is the neutral, standard word for dirty.
Similar in other languages
English
squalid
Close — dirty relates to squalid.
Spanish
mugriento
Close — dirty relates to filthy (mugriento).
Practice
1 What does schmutzig mean?
dirty
2 Fill the gap: Seine Schuhe waren ganz ___.
Full sentence: Seine Schuhe waren ganz schmutzig. (His shoes were completely dirty.)
3 Which fingerprint chart matches schmutzig?
schmutzig: neutral register, core frequency, general domain, neutral connotation.