groundless What is the Definition of groundless?Adjective:without a basis in reason or fact Other meanings of groundless (synonyms, cognates). ENRU groundless беспричинный Frequently viewed: definition of tagdefinition of garbagesaved definitiondiet meaningdefinition of easeinitial meaningboth definitiondefinition of sondefinition of variablemyself meaningimmutable definitionleast meaning A B C D E F G H I J K L M N O P Q R S T U V W X Y Z