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Definition of rock solid adjective from the Oxford Advanced Learner's Dictionary

rock solid

adjective
 
/ˌrɒk ˈsɒlɪd/
 
/ˌrɑːk ˈsɑːlɪd/
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  1. that you can trust not to change or to disappear
    • The support for the party was rock solid.
  2. extremely hard and not likely to break
    • The ice on the river was rock solid.
See rock solid in the Oxford Advanced American Dictionary
Check pronunciation: rock solid

Nearby words

influence
verb
 
 
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