Definition of platitudinism in English:

platitudinism

noun

Origin

Mid 19th century; earliest use found in The Atlantic Monthly. From platitude + -in- + -ism, after e.g. latitudinism.

Pronunciation

platitudinism

/ˌplatɪˈtjuːdnɪz(ə)m/ /ˌplatɪˈtʃuːdnɪz(ə)m/