Eng-Thai Lexitron Dict : undoubted, 10 found, display 1-10  
 
 
 
 
 
 
 - undoubtedly-  :  (ADV)-  ;  อย่างไม่น่าสงสัย-  ;  Syn:assuredly, surely
 
Thai-Eng Lexitron Dict : undoubted, 2 found, display 1-2  
 
 
Royal Institute Thai-Thai Dict : undoubted, not found  
Budhism Thai-Thai Dict : undoubted, not found  
ETipitaka Pali-Thai Dict : undoubted, not found  
Pramaha Prasert Mantasevi's Thai-Pali Dict : undoubted, not found