запеклий

Etymology
From. Formed analogously to a past  of the verb. Compare 🇨🇬.

Adjective

 * 1)  baked, baked-in, hardened
 * 2) hardened
 * 3) hardened, diehard, inveterate, obstinate
 * 4) implacable, sworn
 * 5) tenacious, staunch
 * 6) bitter, fierce
 * 1) implacable, sworn
 * 2) tenacious, staunch
 * 3) bitter, fierce
 * 1) tenacious, staunch
 * 2) bitter, fierce
 * 1) bitter, fierce
 * 1) bitter, fierce
 * 1) bitter, fierce