Not having burst or detonated; referring to a bomb, mine, or explosive device that has not yet gone off.
Prefix 'un-' (negation, from Old English) + 'exploded' (from Latin 'explodere': ex- 'out' + plodere 'to clap'). Originally 'explode' meant to drive off stage by clapping, later meant to burst.
The original Latin meaning of 'explode' was literally 'to boo someone off stage by clapping'—the violent burst came later as a metaphor for that noisy rejection!
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