rostigsten bedeutet auf Englisch

rustiest▼[UK: ˈrʌ.stɪɪst] [US: ˈrʌ.stɪɪst]

frosty [frostier, frostiest]▼◼◼◼adjective
[UK: ˈfrɒ.sti] [US: ˈfrɒ.sti]My horse's breath was steaming in the frosty air. = Der Atem meines Pferdes dampfte in der frostigen Luft.

chilly [chillier, chilliest]▼◼◼◻adjective
[UK: ˈtʃɪ.li] [US: ˈtʃɪ.li]It was chilly. = Es war frostig.

frostily▼adjective
[UK: ˈfrɒ.stɪ.li] [US: ˈfrɒ.stɪ.li]

rusty [rustier, rustiest]▼◼◼◼adjective
[UK: ˈrʌ.sti] [US: ˈrʌ.sti]Your knife is rusty. = Dein Messer ist rostig.

rustily▼adjective