unwavering

His maid is painfully dishonest after years of unwavering loyalty.

But during those years she had not formed an instinct of absolute, unwavering, instantaneous honesty.

Her voice was just as ringing and clear, and with unwavering, finely-touched modulation.

Is the example of Galahad and his unwavering pursuit of the highest spiritual object set before him, nothing to us?

Then again they were running, the unwavering line of thirty men, but with a difference which the outlaws might not mistake.

A hasty obedience, swift and unwavering, is enforced by several stern sanctions.