say it: RAT-ee
ratty is an adjective meaning "of or characteristic of rats". It carries 3 recorded senses.
of or characteristic of rats
showing signs of wear and tear
“a ratty old overcoat”
“shabby furniture”
“an old house with dirty windows and tatty curtains”
dirty and infested with rats
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for ratty come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.