Impenetrable promise Synonyms

Definitions for Impenetrable


  • (adjective) impossible to get through or into
  • (adjective) being beyond one's powers to know, understand, or explain
  • (adjective) impossible to understand

Definitions for Promise


  • (noun) a person 's solemn declaration that he or she will do or not do something
  • (verb) to make a solemn declaration of intent
  • (verb) to show signs of a favorable or successful outcome