IPA: /ˈrʌbəriɪst/
KK: /ˈrʌbəriɪst/
The most flexible and soft in texture, similar to rubber.
The rubberiest material is perfect for making comfortable shoes.
Comparative: rubberier
Superlative: rubberiest
Rubberiest → The word is derived from "rubber" (from the verb "to rub", meaning to move back and forth) and the superlative suffix "-iest" (meaning most). The term "rubberiest" refers to the quality of being the most rubber-like or having the greatest elasticity.
Think of something that is the 'most' flexible or 'most' able to be 'rubbed' — that's what rubberiest means.
No commonly confused words.