| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | hard, durable |
| Synonyms: | coriaceous, hardened, leatherlike, rough, rugged, strong, tough, wrinkled |
| Antonyms: | soft, supple |
| Main Entry: | rugged |
| Part of Speech: | adjective |
| Definition: | bumpy, weathered |
| Synonyms: | asperous, broken, coarse, craggy, difficult, furrowed, harsh, hilly, irregular, jagged, leathery, lumpy, mountainous, ragged, rocky, rough, roughhewn, scabrous, scraggy, stark, uneven, unlevel, unpolished, unrefined, unsmooth, weather-beaten, worn, wrinkled |
| Antonyms: | even, flat, level, smooth |
| Main Entry: | sinewy |
| Part of Speech: | adjective |
| Definition: | stringy, tough |
| Synonyms: | athletic, brawny, fibrous, firm, hard, leathery, muscular, powerful, strong, sturdy, vigorous |
| Main Entry: | tough |
| 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 |