dither

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Related to dithery: haphazardly, flippantly

dither

[′dith·ər]
(communications)
A technique for representing the entire gray scale of a picture by picture elements with only one of two levels (“white” and “black”), in which a multilevel input image signal is compared with a position-dependent set of thresholds, and picture elements are set to “white” only where the image input signal exceeds the threshold.
(control systems)
A force having a controlled amplitude and frequency, applied continuously to a device driven by a servomotor so that the device is constantly in small-amplitude motion and cannot stick at its null position. Also known as buzz.
References in periodicals archive ?
A foreign doctor who administered a fatal overdose to a 70-year-old man seemed tired and was "dithery" and "muttering to himself" at the time, the dead man's partner has told an inquest.
Look, I like a bit of trad as much as the rest of you - I'm very partial to that bit where you slap yourself on the leg and roar, "Yeeeeeeeoh!" - but it seems very unfair that if you're a dithery old man in a flat cap singing with your eyes closed you have more chance of getting through than someone genuinely talented, because you're singing as gaeilge.
True, the decor is a bit of a muddle and the front desk can be dithery, but this young restaurant easily rises above such minor quibbles.
We've seen her bag of tics before, but frequent Durang collaborator Nielsen is the most comfortable of the cast at traveling the playwright's loopy wavelength; the dithery lunacy she brings to the admiration of a flower arrangement or miming the action of "Les Miserables" is priceless.
What a pity for JS Gosforth having to put up with dithery old pensioners, what a sad life he/she has to endure.
The Gay Divorcee is an enjoyably silly film, with its French farce plot and supporting cast of absurdist characters (an eccentric waiter, an over-the-top Italian fop, and the heroine's dithery, yet purposeful aunt.
has nothing to say: "all this dithery dawdling, I can't get
From The Duchess of Marlborough in The First Churchills and Lady Glencora Palliser in The Pallisers to her current role as the dithery Molly MacDonald in Monarch of the Glen, Ms Hampshire has played them all.
But, in fact, if Brown had not been so dithery at that time, he could easily have turned the tables on Blair.
Emma shows the older of two sisters as dim and dithery, a sort of boring version of Jane Bennett, and in Mansfield Park and Persuasion the stakes are higher: siblings fight viciously for resources, the girls for lovers and the boys for money.
I still feel a bit dithery and I don't want to leave the house.
"I don't think it is." This from the creator of a new perfume called "Manifesto"!) Women's rights aren't what one associates with postfeminist icons like Glenn Close, whose most indelible screen role was as the bunny-boiling man-stalker in Fatal Attraction, or Calista Flockhart, television's dithery microskirted lawyerette Ally McBeal.