Antonyms of adj conclusive

1 sense of conclusive

Sense 1
conclusive (vs. inconclusive) -- (forming an end or termination; especially putting an end to doubt or question; "conclusive proof"; "the evidence is conclusive")

inconclusive (vs. conclusive) -- (not conclusive; not putting an end to doubt or question; "an inconclusive reply"; "inconclusive evidence"; "the inconclusive committee vote")
        => equivocal -- (uncertain as a sign or indication; "the evidence from bacteriologic analysis was equivocal")
        => indeterminate -- (not leading to a definite ending or result; "an indeterminate campaign")
        => neck and neck, head-to-head, nip and tuck -- (inconclusive as to outcome; close or just even in a race or comparison or competition; "as they approached the finish line they were neck and neck"; "the election was a nip and tuck affair")
        => nisi -- (not final or absolute; "the decree is nisi and not absolute")

Similarity of adj conclusive

1 sense of conclusive

Sense 1
conclusive (vs. inconclusive) -- (forming an end or termination; especially putting an end to doubt or question; "conclusive proof"; "the evidence is conclusive")
       => definitive, determinate -- (supplying or being a final or conclusive settlement; "a definitive verdict"; "a determinate answer to the problem")
          Also See-> decisive#1