Definition of "prospective"

And in times long and dark Proſpective Glaſs / Fore-ſaw what future dayes ſhould bring to paſs,

1626 (date written), John Milton, “At a Vacation Exercise in the Colledge, […]”, in Poems, &c. upon Several Occasions, London: […] Tho[mas] Dring […], published 1673, page 67

The French king, and the king of Sweden are […] circumspect, industrious, and prospective, too, in this affair.

1668-1690, Josiah Child, A new discourse of trade

the whole Scene of affairs was changed from Spain to France there now lay the prospective

1642, Henry Wotton, A Short View of the Life and Death of George Villiers

[T]hey [two pavillions] were trimmed on the inside with rich armour and military furniture, hanged up as upon the walls; and behind the tents there were represented, in prospective, the tops of divers other tents, as if it had been a camp.

1613 March 2 (first performance), Francis Beaumont, “The Masque of the Inner-Temple and Gray’s Inn, Gray’s Inn and the Inner-Temple; […]”, in The Dramatic Works of Ben Jonson, and Beaumont and Fletcher: […], volume IV, London: […] John Stockdale, […], published 1811, page 573, column 2

At the moment, meeting interesting, 'could be, maybe not' prospectives around the globe keeps her entertained.

2006, Verve: The Spirit of Today's Woman, volume 14, numbers 4-6, page 114