Definition of altitudinous in English:
altitudinous
adjective ˌaltɪˈtʃuːdɪnəsˌaltɪˈtjuːdɪnəs
literary High, lofty (literal and figurative).
Origin
Mid 17th century; earliest use found in Edward Waterhouse (1619–1670), heraldic writer. From classical Latin altitūdin-, altitūdō altitude + -ous.