Learn how to say Insipidness correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word insipid:
lacking flavour; weak or tasteless:
mugs of insipid coffee
lacking vigour or interest:
many artists continued to churn out insipid, shallow works
early 17th century: from French insipide or late Latin insipidus, from in- ‘not’ + sapidus (see sapid)