Vermin | Definition of vermin by Merriam-Webster

Full Definition of VERMIN

1

a : small common harmful or objectionable animals (as lice or fleas) that are difficult to control

b : birds and mammals that prey on game

c : animals that at a particular time and place compete (as for food) with humans or domestic animals

2

: an offensive person

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Middle English, from Anglo-French vermin, vermine, from verm worm, from Latin vermis

First Known Use: 14th century

Synonyms: bastard, beast, bleeder [British], blighter [chiefly British], boor, bounder, bugger, buzzard, cad, chuff, churl, clown, creep, cretin, crud [slang], crumb [slang], cur, dirtbag [slang], dog, fink, heel, hound, joker, louse, lout, pill, rat, rat fink, reptile, rotter, schmuck [slang], scum, scumbag [slang], scuzzball [slang], skunk, sleaze, sleazebag [slang], sleazeball [slang], slime, slimeball [slang], slob, snake, so-and-so, sod [chiefly British], stinkard, stinker, swine, toad, varmint, jerk

: small common harmful or objectionable animals (as fleas or mice) that are difficult to get rid of

: small common harmful or objectionable animals (as lice or fleas) that are difficult to control

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