Filled with the emotional impact of overwhelming surprise or shock:
— Stood in stunned silence.
— Stunned scientists found not one but at least three viruses.

synonyms: amazed, astonied, astonished, astounded.

Roget 419: deaf, earless^†, surd; hard of hearing, dull of hearing; deaf-mute, stunned, deafened; stone deaf; deaf as a post, deaf as an adder, deaf as a beetle, deaf as a trunkmaker^†.    inaudible, out of hearing.    ... show more

Knocked unconscious by a heavy blow.

synonyms: kayoed, knocked out, KO'd, out.

In a state of mental numbness especially as resulting from shock:
— Lay semiconscious, stunned (or stupefied) by the blow.

synonyms: dazed, stupefied, stupid.

Make senseless or dizzy by or as if by a blow:
— Stun fish.

synonym: stupefy.

Roget 870: wonder, marvel, admire; be surprised etc. adj.; start; stare; open one's eyes, rub one's eyes, turn up one's eyes; gloar^†; gape, open one's mouth, hold one's breath; look aghast, stand aghast, stand agog; look blank etc. (disappointment) 509; tombe des nues [Fr.]; not believe one's eyes, not believe one's ears, not believe one's senses.    not be able to account for etc. (unintelligible) 519; not know whether one stands on one's head or one's not know whether one stands on one's head or one's heels.    surprise, astonish, amaze, astound; dumfound, dumfounder; startle, dazzle; daze; strike, strike with wonder, strike with awe; electrify; stun, stupefy, petrify, confound, bewilder, flabbergast, stagger, throw on one's beam ends, fascinate, turn the head, take away one's breath, strike dumb; make one's hair stand on end, make one's tongue cleave to the roof of one's make one's tongue cleave to the roof of one's mouth; make one stare.    take by surprise etc. (be unexpected) 508.    be wonderful etc. adj.; beggar description, beggar the imagination, baffle description; stagger belief.    ... show more

Roget 376: be insensible etc. adj.; have a thick skin, have a rhinoceros hide.    render insensible etc. adj.; anaesthetize^†, blunt, pall, obtund^†, benumb, paralyze; put under the influence of chloroform etc. n.; stupefy, stun.    ... show more

Roget 404: be loud etc. adj.; peal, swell, clang, boom, thunder, blare, fulminate, roar; resound etc. 408.    speak up, shout etc. (vociferate) 411; bellow etc. (cry as an animal) 412.    rend the air, rend the skies; fill the air; din in the ear, ring in the ear, thunder in the ear; pierce the ears, split the ears, rend the ears, split the head; deafen, stun; faire le diable a quatre [Fr.]; make one's windows shake, rattle the windows; awaken the echoes, startle the echoes; wake the dead.    ... show more

Roget 419: be deaf etc. adj.; have no ear; shut one's ears, stop one's ears, close one's ears; turn a deaf ear to.    render deaf, stun, deafen.   

Roget 508: not expect etc. 507; be taken by surprise; start; miscalculate etc. 481; not bargain for; come upon, fall upon.    be unexpected etc. adj.; come unawares etc. adv.; turn up, pop, drop from the clouds; come upon one, burst upon one, flash upon one, bounce upon one, steal upon one, creep upon one; come like a thunder clap, burst like a thunderclap, thunder bolt; take by surprise, catch by surprise, catch unawares, catch napping; yach [S. Afr.].    pounce upon, spring a mine upon.    surprise, startle, take aback, electrify, stun, stagger, take away one's breath, throw off one's guard; astonish, dumbfound etc. (strike with wonder) 870.    ... show more

Roget 823: be insensible etc. adj.; have a rhinoceros hide; show insensibility etc. n.; not mind, not care, not be affected by; have no desire for etc. 866; have no interest in, feel no interest in, take no interest in; nil admirari [Lat.]; not care a straw for etc. (unimportance) 643; disregard etc. (neglect) 460; set at naught etc. (make light of) 483; turn a deaf ear to etc. (inattention) 458; vegetate.    render insensible, render callous; blunt, obtund^†, numb, benumb, paralyze, deaden, hebetate^†, stun, stupefy; brutify^†; brutalize; chloroform, anaesthetize^†, put under; assify^†.    inure; harden the heart; steel, caseharden, sear.    ... show more

Roget 824: excite, affect, touch, move, impress, strike, interest, animate, inspire, impassion, smite, infect; stir the blood, fire the blood, warm the blood; set astir; wake, awake, awaken; call forth; evoke, provoke; raise up, summon up, call up, wake up, blow up, get up, light up; raise; get up the steam, rouse, arouse, stir; fire, kindle, enkindle, apply the torch, set on fire, inflame.    stimulate; exsuscitate^†; inspirit; spirit up, stir up, work up, pique; infuse life into, give new life to; bring new blood, introduce new blood; quicken; sharpen, whet; work upon etc. (incite) 615; hurry on, give a fillip, put on one's mettle.    fan the fire, fan the flame; blow the coals, stir the embers; fan into a flame; foster, heat, warm, foment, raise to a fever heat; keep up, keep the pot boiling; revive, rekindle; rake up, rip up.    stir the feelings, play on the feelings, come home to the feelings; touch a string, touch a chord, touch the soul, touch the heart; go to one's heart, penetrate, pierce, go through one, touch to the quick; possess the soul, pervade the soul, penetrate the soul, imbrue the soul, absorb the soul, affect the soul, disturb the soul.    absorb, rivet the attention; sink into the mind, sink into the heart; prey on the mind, distract; intoxicate; overwhelm, overpower; bouleverser [Fr.], upset, turn one's head.    fascinate; enrapture etc. (give pleasure) 829.    agitate, perturb, ruffle, fluster, shake, disturb, startle, shock, stagger; give one a shock, give one a turn; strike all of a heap; stun, astound, electrify, galvanize, petrify.    irritate, sting; cut to the heart, cut to the quick; try one's temper; fool to the top of one's bent, pique; infuriate, madden, make one's blood boil; lash into fury etc. (wrath) 900.    be excited etc. adj.; flush up, flare up; catch the infection; thrill etc. (feel) 821; mantle; work oneself up; seethe, boil, simmer, foam, fume, flame, rage, rave; run mad etc. (passion) 825.    ... show more

Hit something or somebody as if with a sandbag.

synonym: sandbag.

Overcome as with astonishment or disbelief:
— The news stunned her.

synonyms: bedaze, daze.