improvidential
/ɪmˌprɒvɪˈdɛnʃl/adjective
1Not providential; not relating to or governed by the operation of Providence; (now chiefly) unfortunate, unlucky, inopportune.
2Characterized by improvidence; lacking foresight or regard for the future; improvident.
Origin
Late 17th century; earliest use found in Robert Leighton (bap. 1612, d. 1684), archbishop of Glasgow. From im- + providential.