1. Lack of flavour; untasty.
2. Lack of redeeming qualities that interest or excite you; dull, void of personality.
1. Gee Mrs Potterson! Your flapjacks sure are insipid!
2. It's not that I don't love you any more, it's just that over the past couple of weeks, I've really come to realise what a bland, insipid bastard you've become.
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