rotsvast Learn Unstarted Literal Breakdown Recording English Dutch Learn rock rots Learn solid vast Learn Summary The Dutch translation for “rock-solid” is rotsvast. The Dutch, rotsvast, can be broken down into 2 parts:"rock" (rots) and "solid" (vast). See also Recording English Dutch Learn solid solide Learn solid vast Learn Practice Lesson "rock-solid" Practice (3) Lesson Learn Lesson words rock, solid etc. View all lesson words Lesson phrases rock-solid etc. View all lesson phrases Themed Courses Nature 3 Part of Speech Courses Nouns 94 Acknowledgements Audio Domien De Groot