A chemical substance that undergoes a rapid chemical change (with the production of gas) on being heated or struck.

Roget 727: arm, arms; weapon, deadly weapon; armament, armaments, armature; panoply, stand of arms; armor etc. (defense) 717; armory etc. (store) 636; apparatus belli [Lat.].    ammunition; powder, powder and shot; cartridge; ball cartridge, cartouche, fireball; villainous saltpeter" [Henry IV]; dumdum bullet.    explosive; gunpowder, guncotton; mercury fulminate; picrates; pentaerythritol tetranitrate, PETN.    high explosive; trinitrotoluene, TNT; dynamite, melinite^†, cordite, lyddite, plastic explosive, plastique; pyroxyline^†.    [knives and swords: list] sword, saber, broadsword, cutlass, falchion^†, scimitar, cimeter^†, brand, whinyard, bilbo, glaive^†, glave^†, rapier, skean, Toledo, Ferrara, tuck, claymore, adaga^†, baselard^†, Lochaber ax, skean dhu^†, creese^†, kris, dagger, dirk, banger^†, poniard, stiletto, stylet^†, dudgeon, bayonet; sword-bayonet, sword-stick; side arms, foil, blade, steel; ax, bill; pole-ax, battle-ax; gisarme^†, halberd, partisan, tomahawk, bowie knife^†; ataghan^†, attaghan^†, yataghan^†; yatacban^†; assagai, assegai^†; good sword, trusty sword, naked sword; cold steel.    club, mace, truncheon, staff, bludgeon, cudgel, life preserver, shillelah, sprig; hand staff, quarter staff; bat, cane, stick, knuckle duster; billy, blackjack, sandbag, waddy^†.    gun, piece [Fr.]; firearms; artillery, ordnance; siege train, battering train; park, battery; cannon, gun of position, heavy gun, field piece [Fr.], mortar, howitzer, carronade^†, culverin^†, basilisk; falconet, jingal^†, swivel, pederero^†, bouche a feu [Fr.]; petard, torpedo; mitrailleur [Fr.], mitrailleuse [Fr.]; infernal machine; smooth bore, rifled cannon, Armstrong gun^†, Lancaster gun, Paixhan gun, Whitworth gun, Parrott gun, Krupp gun, Gatling gun, Maxim gun, machine gun; pompom^†; ten pounder.    small arms; musket, musketry, firelock^†, fowling piece [Fr.], rifle, fusil^†, caliver^†, carbine, blunderbuss, musketoon^†, Brown Bess, matchlock, harquebuss^†, arquebus, haguebut^†; pistol, postolet^†; petronel; small bore; breach-loader, muzzle-loader; revolver, repeater; Minis rifle, Enfield rifle, Flobert rifle, Westley Richards rifle, Snider rifle, Martini-Henry rifle, Lee-Metford rifle, Lee-Enfield rifle, Mauser rifle, magazine rifle; needle gun, chassepot^†; wind gun, air gun; automatic gun, automatic pistol; escopet^†, escopette^†, gunflint, gun-lock; hackbut^†, shooter, shooting iron [U.S.], six-shooter [U.S.], shotgun; Uzzi, assault rifle, Kalashnikov.    bow, crossbow, balister^†, catapult, sling; battering ram etc. (impulse) 276; gunnery; ballistics etc. (propulsion) 284.    missile, bolt, projectile, shot, ball; grape; grape shot, canister shot, bar shot, cannon shot, langrel shot^†, langrage shot^†, round shot, chain shot; balista^†, ballista^†, slung shot, trebucbet^†, trebucket^†; bullet, slug, stone, brickbat, grenade, shell, bomb, carcass, rocket; congreve^†, congreve rocket^†; shrapnel, mitraille [Fr.]; levin bolt^†, levin brand^†; thunderbolt.    pike, lance, spear, spontoon^†, javelin, dart, jereed^†, jerid^†, arrow, reed, shaft, bolt, boomerang, harpoon, gaff; eelspear^†, oxgoad^†, weet-weet, wommerah^†; cattle prod; chemical mace.    ... show more

Dutch: explosief, springstof
Polish: materiał wybuchowy

Serving to explode or characterized by explosion or sudden outburst.

Roget 173: violent, vehement; warm; acute, sharp; rough, rude, ungentle, bluff, boisterous, wild; brusque, abrupt, waspish; impetuous; rampant.    turbulent; disorderly; blustering, raging etc. v.; troublous^†, riotous; tumultuary^†, tumultuous; obstreperous, uproarious; extravagant; unmitigated; ravening, inextinguishable, tameless; frenzied etc. (insane) 503.    desperate etc. (rash) 863; infuriate, furious, outrageous, frantic, hysteric, in hysterics.    fiery, flaming, scorching, hot, red-hot, ebullient.    savage, fierce, ferocious, fierce as a tiger.    excited etc. v.; unquelled^†, unquenched, unextinguished^†, unrepressed, unbridled, unruly; headstrong, ungovernable, unappeasable, immitigable, unmitigable^†; uncontrollable, incontrollable^†; insuppressible, irrepressible; orgastic, orgasmatic, orgasmic.    spasmodic, convulsive, explosive; detonating etc. v.; volcanic, meteoric; stormy etc. (wind) 349.    ... show more

Roget 665: in danger etc. n.; endangered etc. v.; fraught with danger; dangerous, hazardous, perilous, parlous, periculous^†; unsafe, unprotected etc. (safe, protect) etc. 664; insecure.    untrustworthy; built upon.   sand, on a sandy basis; wildcat.    defenseless, fenceless, guardless^†, harborless; unshielded; vulnerable, expugnable^†, exposed; open to etc. (liable) 177.    aux abois [Fr.], at bay; on the wrong side of the wall, on a lee shore, on the rocks.    at stake, in question; precarious, critical, ticklish; slippery, slippy; hanging by a thread etc. v.; with a halter round one's neck; between the hammer and the anvil, between Scylla and Charybdis, between a rock and a hard place, between the devil and the deep blue sea, between two fires; on the edge of a precipice, on the brink of a precipice, on the verge of a precipice, on the edge of a volcano; in the lion's den, on slippery ground, under fire; not out of the wood.    unwarned, unadmonished, unadvised, unprepared etc. 674; off one's guard etc. (inexpectant) 508^†.    tottering; unstable, unsteady; shaky, top-heavy, tumbledown, ramshackle, crumbling, waterlogged; helpless, guideless^†; in a bad way; reduced to the last extremity, at the last extremity; trembling in the balance; nodding to its fall etc. (destruction) 162.    threatening etc. 909; ominous, illomened; alarming etc. (fear) 860; explosive.    adventurous etc. (rash) 863, (bold) 861.    ... show more

Polish: wybuchowy

Liable to lead to sudden change or violence:
— An explosive issue.

synonym: volatile.

Sudden and loud.

Polish: eksplozywny, eksplozyjny