The act of altering something secretly or improperly.

synonym: tampering.

Roget 682: activity; briskness, liveliness etc. adj.; animation, life, vivacity, spirit, dash, energy; snap, vim.    nimbleness, agility; smartness, quickness etc. adj.; velocity, etc. 274; alacrity, promptitude; despatch, dispatch; expedition; haste etc. 684; punctuality etc. (early) 132.    eagerness, zeal, ardor, perfervidum aingenium [Lat.], empressement [Fr.], earnestness, intentness; abandon; vigor etc. (physical energy) 171; devotion etc. (resolution) 604; exertion etc. 686.    industry, assiduity; assiduousness etc. adj.; sedulity; laboriousness; drudgery etc. (labor) 686; painstaking, diligence; perseverance etc. 604.1; indefatigation^†; habits of business.    vigilance etc. 459; wakefulness; sleeplessness, restlessness; insomnia; pervigilium^†, insomnium^†; racketing.    movement, bustle, stir, fuss, ado, bother, pottering, fidget, fidgetiness; flurry etc. (haste) 684.    officiousness; dabbling, meddling; interference, interposition, intermeddling; tampering with, intrigue.    press of business, no sinecure, plenty to do, many irons in the fire, great doings, busy hum of men, battle of life, thick of the action.    housewife, busy bee; new brooms; sharp fellow, sharp blade; devotee, enthusiast, zealot, meddler, intermeddler, intriguer, busybody, pickthank^†; hummer, hustler, live man [U.S.], rustler [U.S.].    ... show more

Intrusive in a meddling or offensive manner.

synonyms: busy, busybodied, interfering, meddlesome, officious.

Roget 682: active, brisk, brisk as a lark, brisk as a bee; lively, animated, vivacious; alive, alive and kicking; frisky, spirited, stirring.    nimble, nimble as a squirrel; agile; light-footed, nimble-footed; featly^†, tripping.    quick, prompt, yare^†, instant, ready, alert, spry, sharp, smart; fast etc. (swift) 274; quick as a lamplighter, expeditious; awake, broad awake; go-ahead, live wide-awake [U.S.] etc. (intelligent) 498.    forward, eager, strenuous, zealous, enterprising, in earnest; resolute etc. 604.    industrious, assiduous, diligent, sedulous, notable, painstaking; intent etc. (attention) 457; indefatigable etc. (persevering) 604.1; unwearied; unsleeping^†, never tired; plodding, hard-working etc. 686; businesslike, workaday.    bustling; restless, restless as a hyena; fussy, fidgety, pottering; busy, busy as hen with one chicken.    working, at work, on duty, in harness; up in arms; on one's legs, at call; up and doing, up and stirring.    busy, occupied; hard at work, hard at it; up to one's ears in, full of business, busy as a bee, busy as a one-armed paperhanger.    meddling etc. v.; meddlesome, pushing, officious, overofficious^†, intrigant^†.    astir, stirring; agoing^†, afoot; on foot; in full swing; eventful; on the alert, etc. (vigilant) 459.    ... show more