: not possible to imagine : beyond what you would normally imagine
the unimaginable horrors of war
a disaster of almost unimaginable proportions
This technology would have been unimaginable five years ago.
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“Unimaginable.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/unimaginable. Accessed 22 Jun. 2026.
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