unsuitable

It was a long time before she became at all reconciled to the idea of so unsuitable a match.

But she had never felt so strongly as now the disadvantages which must attend the children of so unsuitable a marriage, nor ever been so fully aware of the evils arising from so ill-judged a direction of talents--talents which, rightly used, might at least have preserved the respectability of his daughters, even if incapable of enlarging the mind of his wife.