| 
WordNet-OnlineFree dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
 Hint: double-click any word to get it searched!
  
 
            
         
Adjective well-grounded has 1 sense
reasoned, sound, well-grounded - reflects weight of sound argument or evidence; "a sound argument"Antonym:  invalid (indirect, via valid)
 
 |