tenacious

te-na-cious/təˈneɪʃəs/US

adjective

  1. 1

    Clinging to an object or surface; adhesive.

  2. 2

    Unwilling to yield or give up; dogged.

  3. 3

    Holding together; cohesive.

  4. 4

    Having a good memory; retentive.

Etymology

From Latin tenax, "holding fast", from tenere ("to hold").

Synonyms

Also useful for “tenacious”:Unscrambler