plenitudinous
/ˌplɛnɪˈtjuːdɪnəs/ /ˌplɛnɪˈtʃuːdɪnəs/adjective
Characterized by plenitude, amplitude, or fullness.
Origin
Early 19th century; earliest use found in Samuel Pegge (1733–1800), antiquary and writer. From classical Latin plēnitūdin-, plēnitūdō + -ous, after magnitudinous, etc.