tougher Definition

stiffer, harder, stricter, harsher, tighter, stronger, fiercer, worse, bolder, meaner, heavier, louder, firmer, greater, keener, higher, sturdier, narrower, severer, starker, more, toughened, sterner, easier, rougher, trickier, better, friendlier, difficult, looser, stringent, bigger, softer, nastier, steeper, sharper, quicker, bumpier, clearer, weaker, uglier, kinder, hungrier, daunting, smarter, laxer, challenging, braver, crueler, feistier, crazier, calmer, scarier, hotter, stingier, simpler, nicer, dicey, shakier, lenient, sweeter, gutsier, heftier, angrier, murkier, rockier, swifter, grimmer, sorer, aggressive, stickier, testier, busier, tenser, gloomier, prettier, gentler, onerous, cloudier, milder, fewer, fresher, hairier, warier, speedier, livelier, messier, rosier, riskier, mandatory, dirtier, shorter, beefier, faster, slower, thornier, lighter, shrewder, safer, chillier,