tenacious

As a noun resilience

is resilience (the mental ability to recover quickly from depression, illness or misfortune).

As an adjective tenacious is

clinging to an object or surface; adhesive.

As adjectives the difference between tenacious and aggressive

is that tenacious is clinging to an object or surface; adhesive while aggressive is tending or disposed to aggress; characterized by aggression; making assaults; unjustly attacking.

As adjectives the difference between cantankerous and tenacious

is that cantankerous is given to or marked by an ill-tempered nature, ill-tempered, cranky, surly, crabby while tenacious is clinging to an object or surface; adhesive.

As adjectives the difference between restive and tenacious

is that restive is impatient under delay, duress, or control while tenacious is clinging to an object or surface; adhesive.

As adjectives the difference between grit and tenacious

is that grit is of or belonging to the Liberal Party of Canada while tenacious is clinging to an object or surface; adhesive.

As a noun grit

is collection of hard small materials, such as dirt, ground stone, debris from sandblasting or other such grinding, swarf from metalworking.

As a verb grit

is to clench, particularly in reaction to pain or anger; apparently only appears in gritting one's teeth.

As adjectives the difference between tenacious and adament

is that tenacious is clinging to an object or surface; adhesive while adament is misspelling of lang=en.

As an adjective tenacious

is clinging to an object or surface; adhesive.

As a noun perusal is

the act of perusing; studying something carefully.

As adjectives the difference between guarded and tenacious

is that guarded is cautious; restrained while tenacious is clinging to an object or surface; adhesive.

As a verb guarded

is (guard).

As adjectives the difference between honorable and tenacious

is that honorable is (us) worthy of respect; respectable while tenacious is clinging to an object or surface; adhesive.

As adjectives the difference between tenacious and assertive

is that tenacious is clinging to an object or surface; adhesive while assertive is boldly self-assured; confident without being aggressive.