It may be sheer obstinacy, or perhaps they have all tested the springs, without effect.
He did, after all, admire the sheer obstinacy of her commitment to the patriarchs' bogus notion of innocence.
But out of sheer obstinacy, Desai refused to reconsider the matter.
The Jews remains alive by sheer obstinacy of faith.
Nancy noticed that the prim British couple - not in fear but out of sheer obstinacy - had closed their windows, despite the moist heat.
Kris often seemed to take a stand opposing hers just for sheer obstinacy.
The British were initially reluctant to divide the subcontinent, but through a mixture of brilliant advocacy skills and sheer obstinacy Jinnah got his way.
Additionally, "sheer obstinacy . . . was, he commented himself, a constant trait in his character."
By sheer obstinacy and bad manners he made it.
Suffer the insufferable out of sheer obstinacy.