もしも

若しも

表記・読み：もしも

1. 1

   if; in case; supposing

   副詞emphatic form of もし; with a conditional sentence; oft. for unfavorable outcomesword usually written using kana alone
2. 2

   worst (case); unexpected (occurence); unforeseen

   nouns which may take the genitive case particle 'no'