to be a big if
01
to be a condition or requirement that is uncertain or potentially challenging to fulfill
![to [be] a big if definition and meaning](https://cdn.langeek.co/photo/46758/original/?type=jpeg "to [be] a big if definition and meaning")
Idiom
Informal
Exempel
Whether the plan will work depends on the weather conditions, and that's a big if in this unpredictable climate.
