inconclusive

UK: /ˌɪnkənˈkluːsɪv/

US: /ˌɪnkənˈklusɪv/

US: (in′kən klo̅o̅′siv)

WordReference Random House Learner's Dictionary of American English © 2025

in•con•clu•sive /ˌɪnkənˈklusɪv/  adj. 

1. not proving something beyond doubt:
   The results of the tests were inconclusive.
in•con•clu•sive•ly, adv. 
in•con•clu•sive•ness, n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2025

in•con•clu•sive  (in′kən klo̅o̅′siv), adj. 

1. not conclusive;
   not resolving fully all doubts or questions:
   inconclusive evidence.
2. without final results or outcome:
   inconclusive experiments.

• in-³ + conclusive 1680–90

in′con•clu′sive•ly, adv. 
in′con•clu′sive•ness, n. 
Synonyms

unsettled, indecisive, indefinite.

Collins Concise English Dictionary © HarperCollins Publishers::

inconclusive / ˌɪnkənˈkluːsɪv/ adjective

1. not conclusive or decisive; not finally settled; indeterminate

ˌinconˈclusively adverb

ˌinconˈclusiveness noun