Prone to blundering; tending to make mistakes; clumsy or awkward.
From 'blunder' plus the adjective-forming suffix '-some,' meaning characterized by or full of (as in 'troublesome' or 'handsome'). The '-some' suffix comes from Old English '-sum,' originally suggesting resemblance or possession of a quality.
The suffix '-some' often carries a slightly negative or cautionary tone—'blundersome' suggests someone is regularly characterized by mistakes, unlike 'blunderful' which just means full of errors.
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