unproven

As adjectives the difference between unproven and undefined

is that unproven is not proved while undefined is lacking a definition or value.

As an interjection new

is mew, meow, miaow.

As an adjective unproven is

not proved.

As adjectives the difference between unproven and problematic

is that unproven is not proved while problematic is posing a problem; difficult to overcome or solve.

As a noun problematic is

(chiefly|in the plural) a problem or difficulty in a particular field of study.

As adjectives the difference between green and unproven

is that green is (politics) of, or pertaining, to a green party while unproven is not proved.

As a proper noun green

is .

As adjectives the difference between hypothetical and unproven

is that hypothetical is based upon a hypothesis; conjectural while unproven is not proved.

As a noun hypothetical

is a hypothetical situation or proposition.

As adjectives the difference between unfounded and unproven

is that unfounded is having no strong foundation; not based on solid reasons or facts while unproven is not proved.

As adjectives the difference between unproven and unjustified

is that unproven is not proved while unjustified is not justified.

As adjectives the difference between unproven and unsubstantiated

is that unproven is not proved while unsubstantiated is lacking substantiation; without evidence.

As adjectives the difference between unprovable and unproven

is that unprovable is that cannot be proved or verified by any test while unproven is not proved.