unsure of what to do, the operator asked a superior what the correct move would be.
Those are things that may be helpful, especially to editors who are unsure.
Want to start self-tracking but unsure where to store your data, or how to make it look good (and more importantly, make sense)?
They remain distrustful of his record on abortion, and unsure they can believe his campaign promises.
Of these popular perceptions, institutional leaders were dismissive, unconcerned, or unsure.
And he rose with unsure joints and offered to lead the way to the wine cellar.
When you start to be afraid, you start to be unsure—not of anyone else's weaknesses, but of your own.
She fumbled through it, unsure what she sought until her fingers held the lipstick pencil.
"Anna," he said, as if he answered her from a distance, unsure.
Of these things I was assured, yet too unsure to enjoy Thee.
c.1300, "safe, secure," later "mentally certain" (mid-15c.), from Old French sur, seur "safe, secure," from Latin securus "free from care, untroubled, heedless, safe" (see secure (adj.)). Pronunciation development followed that of sugar. As an affirmative meaning "yes, certainly" it dates from 1803, from Middle English meanings "firmly established; having no doubt," and phrases like to be sure (1650s), sure enough (1540s), and for sure (1580s). The use as a qualifier meaning "assuredly" goes back to early 15c. Sure-footed is from 1630s; sure thing dates from 1836. In 16c.-17c., Suresby was an appellation for a person to be depended upon.
Yes; certainly: Sure, I'll support you (1842+)