"vast, far-reaching;" c. 1600 of immaterial, c. 1700 of material things; from Late Latin extensivus, from extens-, past-participle stem of Latin extendere "to stretch out, spread" (see extend). Earlier in a medical sense, "characterized by swelling" (early 15c.). Related: Extensively; extensiveness.
they suffered extensive damage
an extensive Roman settlement in northwest England
agriculture of the extensive type
producing wheat under extensive conditions
extend
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extenuation
exterior
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