What is the opposite of substantiated?

Need antonyms for substantiated? Here's a list of opposite words from our thesaurus that you can use instead.

Verb
Opposite of to have demonstrated to be true based on facts
“Steven's defense disproved the evidence brought forward by the prosecutors.”
Verb
Opposite of to have proven or demonstrated
“Thus far, we have only theorized that the two elements will form a combustible compound when amalgamated.”
Verb
Opposite of past tense for provide evidence to support or prove the truth of
Verb
Opposite of past tense for to represent in a physical, concrete or visible form
Adjective
Opposite of existing in reality or as a matter of fact
“The premise that this was built by aliens is highly conjectural!”
Adjective
Opposite of fulfilled
Adjective
Opposite of subject to positive verification
Adjective
Opposite of based on, or displaying, common sense, logic, or rationality
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