tougher, sterner, harsher, tighter, stricter, heavier, stronger, lighter, steeper, heftier, toughened, beefier, softer, fiercer, rougher, looser, sharper, stouter, friendlier, sturdier, swifter, bulkier, harder, bigger, livelier, shorter, thicker, greater, better, stickier, lenient, weaker, quicker, laxer, brawnier, slimmer, speedier, smoother, thinner, lengthier, rustier, bolder, gentler, tauter, meatier, stringent, narrower, bumpier, firmer, slower, sportier, larger, higher, stingier, flatter, lankier, lesser, gutsier, punchier, trickier, hairier, smaller, heartier, chewier, hardier, lengthened, squarer, faster, classier, easier, kinder, chunkier, fresher, sorer, tamer, lower, meaner, milder, straighter, bouncier, hungrier, quieter, fatter, sleeker, edgier, uglier, sweeter, slighter, roomier, thirstier, nicer, taller, puffier, curlier, springier, keener, hotter, prettier, nastier, weightier, feistier, tidier, stiffest, stiff, draconian, rigid, tough, severer, discriminatory, inflexible, lax, applicable, harmonised, mandatory

., stiffen