How to say stiffest in different languages

You can say stiffest as courageux, tenace, résistant, âpre, appuyé in the following countries: Benin; Burkina Faso; Burundi; Central African Republic; Chad; Democratic Republic of the Congo; Djibouti; France; French Guiana; French Polynesia; French Southern Territories; Gabon; Guadeloupe; Guinea; Ivory Coast; Madagascar; Mali; Martinique; Mayotte; Monaco; Niger; Republic of the Congo; Reunion; Saint Barthelemy; Saint Martin; Saint Pierre and Miquelon; Senegal; Togo;

You can say stiffest as obstinado, inexpugnable, tenaz, testarudo, determinado, persistente, perseverante, pertinaz, aferrado, reñido, contumaz, empeñoso, de apoyo, porfiado, tesonero, empeñado, fregado in the following countries: Argentina; Bolivia; Chile; Colombia; Costa Rica; Cuba; Dominican Republic; Ecuador; El Salvador; Equatorial Guinea; Guatemala; Honduras; Mexico; Nicaragua; Panama; Paraguay; Peru; Spain; Uruguay; Venezuela;

You can say stiffest as resistant, volhardend in the following countries: Aruba; Belgium; Curacao; Netherlands; Netherlands Antilles; Sint Maarten; Suriname;

You can say stiffest as teimoso, afincado, aferrado in the following countries: Angola; Brazil; Cabo Verde; Guinea-Bissau; Mozambique; Portugal; Sao Tome and Principe;

You can say stiffest as zäh, konsequent, nachhaltig, hartnäckig, ausdauernd, halsstarrig, trotzig in the following countries: Austria; Germany; Liechtenstein; Switzerland;

You can say stiffest as continuo, accanito, caparbio, testardo, di spinta, fisso, persistente, perseverante, di arresto, di supporto, di appoggio, strenuo, di scontro in the following countries: Italy; San Marino;

You can say stiffest as envis, resistent in the following countries: Aland Islands; Sweden;

You can say stiffest as tvrdohlavý, vytrvalý, stavěcí in the following countries: Czechia;

You can say stiffest as stædige in the following countries: Denmark;

You can say stiffest as visa, kangekaelne, püsiv in the following countries: Estonia;

You can say stiffest as grūti, smags, spītīgs, sīksts, izturīgs, neatlaidīgs in the following countries: Latvia;

You can say stiffest as inat, ısrarlı, sebatlı in the following countries: Turkey;

You can say stiffest as стійкий, стопорний in the following countries: Ukraine;