← BackshareGuessultrasimple/ˌʌltrəˈsɪmpəl/adjectiveExtremely simple; very easy to understand or do.The app has an ultrasimple design that anyone can use.She created an ultrasimple recipe with only three ingredients.The instructions were ultrasimple, so even a child could follow them.SynonymseasybasicAntonymscomplex