Muriel was untiring in her activity.

Even now, untiring as my care for you shall ever be, I know my enemies will be as tireless in endeavours to rob me of you.

Hewn from hard rocks, untired at set of sun, Milo, didst ne'er regret some absent one? MILO.

Miss Axtell looked so comfortable, so untired of life, so changed from the first glimpse I had had of her, when I thought her face might be such as would be found under Dead-Sea waves.