ostentatory
/ɒˈstɛntət(ə)ri/ /ˌɒstɛnˈteɪt(ə)ri/rare
adjective
Intended to attract attention or admiration; = ostentatious.
Origin
Mid 17th century; earliest use found in MS Downside 54401. From post-classical Latin ostentatorius relating to portents, showing the external appearance from classical Latin ostentātor + -ius, suffix forming adjectives; compare -ory.