unplumbable

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Not plumbable; unfathomable. not-comparable
    — Either because it was a less toxic species, or because by now Doug was growing immunized, or for some other unplumbable reason, in this case the effects were no worse than those from a bee sting.

词源

From un- + plumbable.
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