Перевод с испанского на английский: terminante

1 Spartan, acute, austere, cutting, dangerous, dour, edged, forbidding, grave, grievous, grim, hard, harsh, heavy-handed, inexorable, intemperate, knockout, life-threatening, relentless, rigorous, rough, roughshod, serious, severe, stern, stinging, stringent, terrible, tight, unappeasable, unforgiving, unrelenting, unsparing, unyielding, wicked.

2 arduous, austere, awkward, backbreaking, callous, difficult, dour, embarrassing, fibrous, forbidding, grim, grueling, gruelling, hard, hard-boiled, hardhearted, heartless, heavy, indurate, knockout, laborious, operose, pachydermatous, punishing, rocky, rough, severe, sinewy, stern, sticky, stiff, stifling, stringy, sulfurous, sulphurous, sultry, toilsome, tough, toughened, unchewable, unenviable, unyielding.

3 dogged, dour, persistent, pertinacious, tenacious, unyielding.