problematical

They could have had trouble raising new capital, it could have been problematical.

As main-character material, Wittgenstein likewise was highly problematical.

This attitude of the scientific world toward these problematical occurrences is quite comprehensible.

Accordingly, merchants prefer a representative currency, even though its representative character be somewhat problematical.

Probably for this reason the "delivery" of the labor vote by the Federation has ever been so largely problematical.

Wallace's plays are more or less problematical and Maud has invested a good deal of her money in this.

During part of the march up rations had been short, and for a number of days were very problematical.