questionable

Questionable is a related term of unsure.

As adjectives the difference between questionable and unsure

is that questionable is (obsolete) inviting questions; inviting inquiry while unsure is uncertain.

Theoretical is a related term of questionable.

As adjectives the difference between theoretical and questionable

is that theoretical is of or relating to theory; abstract; not empirical while questionable is (obsolete) inviting questions; inviting inquiry.

Worrisome is a related term of questionable.

As adjectives the difference between worrisome and questionable

is that worrisome is causing worry; perturbing or vexing while questionable is (obsolete) inviting questions; inviting inquiry.

As adjectives the difference between problematic and questionable

is that problematic is posing a problem; difficult to overcome or solve while questionable is inviting questions; inviting inquiry.

As a noun problematic

is a problem or difficulty in a particular field of study.

Postulated is a related term of questionable.

As a verb postulated

is (postulate).

As an adjective questionable is

(obsolete) inviting questions; inviting inquiry.

Conjectural is a related term of questionable.

As adjectives the difference between conjectural and questionable

is that conjectural is in the nature of a conjecture, or based on a conjecture while questionable is (obsolete) inviting questions; inviting inquiry.

As a noun conjectural

is something that is conjectural; a conjecture.

Perplexing is a related term of questionable.

As adjectives the difference between perplexing and questionable

is that perplexing is confusing or puzzling while questionable is (obsolete) inviting questions; inviting inquiry.

As a verb perplexing

is .

Questionable is a related term of undecided.

As adjectives the difference between questionable and undecided

is that questionable is (obsolete) inviting questions; inviting inquiry while undecided is open and not yet settled or determined.

As a noun undecided is

a voter etc who has not yet come to a decision.

Unknown is a related term of questionable.

As adjectives the difference between unknown and questionable

is that unknown is not known; unidentified; not well known while questionable is (obsolete) inviting questions; inviting inquiry.

As a noun unknown

is (algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.

Conditional is a related term of questionable.

In obsolete|lang=en terms the difference between conditional and questionable

is that conditional is (obsolete) a limitation while questionable is (obsolete) inviting questions; inviting inquiry.

As adjectives the difference between conditional and questionable

is that conditional is limited by a condition while questionable is (obsolete) inviting questions; inviting inquiry.

As a noun conditional

is (grammar) a conditional sentence; a statement that depends on a condition being true or false.