How Do You Spell RUSTEST?
Pronunciation: [ɹˈʌstəst] (IPA) 
The spelling of the word "rustest" follows the typical English pattern for comparative adjectives ending in "-st." In IPA phonetic transcription, "rustest" is pronounced /ˈrʌstɪst/. The first syllable "rɅst" is pronounced with a short "u" sound and the final "st" is pronounced with a voiceless "s" and a voiceless "t" sound. "Rustest" is commonly used in sentences like "The older car rusts more easily than the new one," where it denotes a higher level of rusting in comparison to another object.
