tickless

tick +‎ -less

tickless (not comparable)

1. Lacking ticks (the insect).
   • 1994, Howard Bronson, Dog Gone: Coping with the Loss of a Pet, page 11:

     Our suddenly tickless dog, now quite ticked-off, doesn't know who to kill first but by the time he rolls over, jaws snapping, the surgeons are practicing in the next county.

2. Without a ticking sound.
   • 2018, Maxwell Cooke, The Elderly Gentlemen's Mostly Legitimate Escort Association:

     Maybe with the new technology, they might have tickless bombs. They've had tickless clocks for years. And they even have seedless watermelons. So a tickless bomb should be routine.

3. (computing) Having interrupts occur only when required, rather than at regular intervals.

   a tickless kernel; a tickless scheduler

• Stickels, Stickles, slickest, stickles