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The proposal's unpalatable terms made the investors hesitate.
The terms were so disagreeable that investors were reluctant to agree.
Unpleasant or disagreeable to the taste or mind
The medicine had an unpalatable taste.
The medicine tasted very bad.
The truth was unpalatable, but necessary to hear.
The truth was unpleasant, but it was important to acknowledge.
Often used to describe something that is distasteful, either literally (food, drink) or figuratively (ideas, situations).
Remember that 'unpalatable' can describe both literal tastes (food, drinks) and figurative concepts (ideas, situations).
From 'un-' (not) + 'palatable' (agreeable to the palate), from Latin 'palātus' (palate).
Can be used both literally (food/drink) and figuratively (ideas, situations). Often implies something that is hard to accept or endure.