Definition of unostensible in English:

unostensible

adjective

  • Not ostensible; unseen, invisible; inconspicuous.

Origin

Mid 18th century; earliest use found in John Almon (1737–1805), bookseller and political journalist. From un- + ostensible.

Pronunciation

unostensible

/(ˌ)ʌnɒˈstɛnsɪbl/