Definition of 海内無双 (かいだいむそう)
かいだいむそう
                        海内無双
かいだいむそう
kaidaimusou
noun
•
        
unparalleled in the whole country(yojijukugo)
Related Kanji
| 海 | sea, ocean | 
| 内 | inside, within, between, among, house, home | 
| 無 | nothingness, none, ain't, nothing, nil, not | 
| 双 | pair, set, comparison, counter for pairs |