preferable

UK: /ˈprɛf^ərəb^əl/

US: /ˈprɛfərəbəl, ˈprɛfrə- or, often, prɪˈfɜr-/

US: (pref′ər ə bəl, pref′rə- or, often, pri fûr′-)

WordReference Random House Learner's Dictionary of American English © 2026

pref•er•a•ble /ˈprɛfərəbəl, ˈprɛfrə- or, often, prɪˈfɜr-/   adj. 

1. more desirable;
   worthy to be preferred:
   Driving there is preferable to walking.

pref•er•a•bly, adv.: 

They're looking for a new car, preferably one that is not very expensive.

WordReference Random House Unabridged Dictionary of American English © 2026

pref•er•a•ble  (pref′ər ə bəl, pref′rə- or, often, pri fûr′-), adj. 

1. more desirable.
2. worthy to be preferred.

• French préfsptérable. See prefer, -able
• 1640–50

pref′er•a•bil′i•ty, pref′er•a•ble•ness, n. 
pref′er•a•bly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

preferable / ˈprɛfərəb^əl ˈprɛfrəb^əl/, preferrable adjective

1. preferred or more desirable

USAGE
Since preferable already means more desirable, one should not say something is more preferable or most preferable