forthcoming

Comeup is likely misspelled.

Comeup has no English definition.

As an adjective forthcoming is

approaching or about to take place.

As a noun forthcoming is

something that is yet to come.

As adjectives the difference between candid and forthcoming

is that candid is impartial and free from prejudice while forthcoming is approaching or about to take place.

As nouns the difference between candid and forthcoming

is that candid is a spontaneous or unposed photograph while forthcoming is something that is yet to come.

As adjectives the difference between forthcoming and unforthcoming

is that forthcoming is (not comparable) approaching or about to take place while unforthcoming is not forthcoming; laconic or uncooperative.

As a noun forthcoming

is something that is yet to come.