strongestreason

noun
UK /ˈstrɒŋɡɪst ˈriːzən/
US /ˈstrɔːŋɡɪst ˈriːzən/

The best and most important why for doing something.

The strongestreason she gave for choosing the blue bike was that it was her favorite color.


OTHER MEANINGS

2. The most powerful argument in a discussion or debate.

His strongestreason for staying home was the heavy rain.

3. The most convincing explanation for why something happened.

The strongestreason for the team's win was their hard practice.

4. The most important cause behind a choice.

The strongestreason for picking that book was its funny pictures.