| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | sturdy, strong |
| Synonyms: | brawny, cohesive, conditioned, dense, durable, fibrous, firm, fit, flinty, hard, hard as nails, hard-bitten, hardened, hardy, healthy, indigestible, inflexible, leathery, lusty, mighty, molded, resilient, resistant, rigid, robust, rugged, seasoned, sinewy, solid, stalwart, steeled, stiff, stout, strapping, tenacious, tight, tough as nails, unbreakable, unyielding, vigorous, withstanding |
| Antonyms: | delicate, fragile, unstable, vulnerable, weak, wobbly |
| Main Entry: | tough |
| Part of Speech: | adjective |
| Definition: | difficult, laborious |
| Synonyms: | arduous, backbreaking, baffling, burdensome, demanding, effortful, exacting, exhausting, exigent, grievous, hairy*, handful, hard, heavy, intractable, intricate, irksome, knotty, labored, mean, no piece of cake, onerous, oppressive, perplexing, puzzling, resisting, severe, stiff, strenuous, taxing, thorny, toilsome, troublesome, trying, unyielding, uphill, weighty, wicked |
| Antonyms: | controllable, easy, facile |
| Main Entry: | adamant |
| Part of Speech: | adjective |
| Definition: | hard like rock |
| Synonyms: | adamantine, flinty, impenetrable, indestructible, rock-hard, tough, unbreakable |
| Antonyms: | flexible, soft, supple |
| Main Entry: | aggressive |
| Part of Speech: | adjective |
| Definition: | assertive |
| Synonyms: | assertory, bold, brassy, cheeky*, cocky*, come on, domineering, dynamic, energetic, enterprising, flip*, forceful, fresh*, get up and go, go after, hard sell, imperious, masterful, militant, nervy, pushing, pushy, sassy, shooting from the hip, smart alecky, smart*, strenuous, tough, vigorous, zealous |
| Antonyms: | complaisant, laid-back |
| Main Entry: | arduous |
| Part of Speech: | adjective |
| Definition: | difficult, hard to endure |
| Synonyms: | backbreaking, burdensome, exhausting, fatiguing, formidable, grueling, harsh, heavy, labored, laborious, murder, no picnic, onerous, painful, punishing, rigorous, rough, severe, strenuous, taxing, tiring, toilsome, tough, troublesome, trying, uphill |
| Antonyms: | easy, facile, motivating |
| Main Entry: | awful |
| Part of Speech: | adjective |
| Definition: | very bad; terrible |
| Synonyms: | abominable, alarming, appalling, atrocious, deplorable, depressing, dire, disgusting, distressing, dreadful, fearful, frightful, ghastly, grody, gross*, gruesome, grungy, harrowing, hideous, horrendous, horrible, horrific, horrifying, nasty, offensive, raunchy, repulsive, shocking, stinking, synthetic, tough, ugly, unpleasant, unsightly |
| Antonyms: | beautiful, good, ok, pleasing |
| Main Entry: | best |
| Part of Speech: | adjective |
| Definition: | most excellent |
| Synonyms: | 10, A-1, ace, bad*, beyond compare, boss*, capital, champion, chief, choicest, cool*, culminating, finest, first, first-class, first-rate, foremost, greatest, highest, incomparable, inimitable, leading, matchless, nonpareil, number 1, optimum, out-of-sight, outstanding, paramount, peerless, perfect, preeminent, premium, prime, primo, principal, sans pareil, second to none, super, superlative, supreme, terrific, tops, tough, transcendent, unequaled, unparalleled, unrivaled, unsurpassed |
| Antonyms: | worst |
| Main Entry: | brawny |
| Part of Speech: | adjective |
| Definition: | muscular, strong |
| Synonyms: | able-bodied, athletic, beefy, bulky, burly, fleshy, hardy, hefty, husky, powerful, robust, sinewy, stalwart, strapping, sturdy, thewy, tough, vigorous, vital |
| Antonyms: | frail, skinny, slight, thin, weak |
| Main Entry: | burdensome |
| Part of Speech: | adjective |
| Definition: | troublesome |
| Synonyms: | carking, crushing, demanding, difficult, disturbing, exacting, exigent, heavy*, irksome, onerous, oppressive, superincumbent, taxing, tough, trying, wearing, wearying, weighty |
| Antonyms: | aiding, helpful, helping, relieving, unburdensome |