Antonyms of adj definitive

3 senses of definitive

Sense 1
definitive, unequivocal -- (clearly defined or formulated; "the plain and unequivocal language of the laws"- R.B.Taney)

INDIRECT (VIA explicit) -> implicit, inexplicit -- (implied though not directly expressed; inherent in the nature of something; "an implicit agreement not to raise the subject"; "there was implicit criticism in his voice"; "anger was implicit in the argument"; "the oak is implicit in the acorn")

Sense 2
authoritative, classical, classic, definitive -- (of recognized authority or excellence; "the definitive work on Greece"; "classical methods of navigation")

INDIRECT (VIA standard) -> nonstandard -- (not standard; not accepted as a model of excellence; "a nonstandard text")

Sense 3
definitive, determinate -- (supplying or being a final or conclusive settlement; "a definitive verdict"; "a determinate answer to the problem")

INDIRECT (VIA conclusive) -> inconclusive -- (not conclusive; not putting an end to doubt or question; "an inconclusive reply"; "inconclusive evidence"; "the inconclusive committee vote")

Similarity of adj definitive

3 senses of definitive

Sense 1
definitive, unequivocal -- (clearly defined or formulated; "the plain and unequivocal language of the laws"- R.B.Taney)
       => explicit (vs. implicit), expressed -- (precisely and clearly expressed or readily observable; leaving nothing to implication; "explicit instructions"; "she made her wishes explicit"; "explicit sexual scenes")

Sense 2
authoritative, classical, classic, definitive -- (of recognized authority or excellence; "the definitive work on Greece"; "classical methods of navigation")
       => standard (vs. nonstandard) -- (established or well-known or widely recognized as a model of authority or excellence; "a standard reference work"; "the classical argument between free trade and protectionism")

Sense 3
definitive, determinate -- (supplying or being a final or conclusive settlement; "a definitive verdict"; "a determinate answer to the problem")
       => conclusive (vs. inconclusive) -- (forming an end or termination; especially putting an end to doubt or question; "conclusive proof"; "the evidence is conclusive")