IPA: //plætɪˈtjuːdɪnəs//
KK: /plætɪˈtjuːdɪnəs/
Describing something that is dull or unoriginal because it relies on clichés or overused phrases.
The speaker's platitudinous remarks failed to inspire the audience.
Platitudinous → It is formed from "platitude" (from French *platitude*, meaning flatness or dullness) and the suffix "-ous" (meaning full of). The word "platitudinous" describes something that is full of flatness or dullness, often referring to remarks that are unoriginal or lacking in depth.
Think of 'flatness' ('platitude') to remember that 'platitudinous' means full of dull or unoriginal remarks.