Sentence examples for challenging enough from inspiring English sources

Sound challenging enough?

EXPRESSING your own views is challenging enough.

You think MAT204 is not challenging enough.

You think MAT201 is not challenging enough.

You think MAT203 is not challenging enough.

You think MAT202 is not challenging enough.

Predicting the outcome of the Iowa caucuses is challenging enough.

We were not challenging enough at that moment.

The global goals looked challenging enough in 2015.

Changing job functions is challenging enough; swapping continents at the same time is a real test.

It's challenging enough to remain sane and pursue peace in this crowded, problematic neighborhood of ours.