From Wiktionary, the free dictionary
From raro + -issimo.
- IPA(key): /raˈris.si.mo/
- Rhymes: -issimo
- Hyphenation: ra‧rìs‧si‧mo
rarissimo (feminine rarissima, masculine plural rarissimi, feminine plural rarissime)
- superlative degree of raro (“very rare”)
rārissimō
- dative/ablative masculine/neuter singular of rārissimus
