Webster's Revised Unabridged Dictionary · 1913

labourious

labourious , adjective

1.

characterized by toilsome effort; same as laborious; -- British spelling. [Chiefly British]

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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