English

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Etymology

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From platitude +‎ -in- +‎ -al.[1]

Adjective

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platitudinal (comparative more platitudinal, superlative most platitudinal)

  1. Characterized by banality or triteness.
    Synonym: platitudinous

References

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  1. ^ platitudinal, n.”, in OED Online  , Oxford, Oxfordshire: Oxford University Press, launched 2000.