WordReference Random House Learner's Dictionary of American English © 2026
in•de•fin•a•ble /ˌɪndɪˈfaɪnəbəl/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- not easily identified:had some indefinable quality.
in•de•fin•a•ble
(in′di fī′nə bəl),USA pronunciation adj.
n.
in′de•fin′a•ble•ness, n.
in′de•fin′a•bly, adv.
- not definable;
not readily identified, described, analyzed, or determined.
n.
- something that cannot be defined:the indefinables of great musicianship.
- in-3 + definable 1800–10
in′de•fin′a•bly, adv.
'indefinable' also found in these entries (note: many are not synonyms or translations):