What's the difference between unhoped and unthought?

Unhoped

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Definition:

• (a.) Not hoped or expected.

Example Sentences:

• (1) The other 15 survivors have a significant and unhoped for functional improvement.
• (2) Careful scientific methods have enabled previously unhoped-for results to be obtained in very widespread and debilitating diseases.

Unthought

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Definition:

Example Sentences: