tunable /ˈtjuːnəb(ə)l/adjective 2noun 1forms 3 adjective2 •Able to be tuned. •(no longer used) Harmonious, melodic, tuneful.Then doe all with a tunable voice of shouting bid him welcome. — 1624 noun1 •A setting that can be configured.If you are working with TCP, some specific tunables are also available. By default, some TCP tunables have a value that is too low. — 2013 formstunables · more tunable · most tunable