広範囲|こうはんいkouhan'i[3]nakadaka (mid-high)

1. na-adjective, nounextensive; vast range; wide scope
   彼かれの研究けんきゅうは広範囲こうはんいに及およんでいる。↗

   His studies cover a wide field.

• Synonym広大こうだいWrittenVast in area, as in 「広大な土地」: it stresses the sheer size of a space, while 「広範囲」 stresses how wide a range something covers or affects. Written.
• Synonym広範こうはんWrittenWide-ranging in scope, as in 「広範な知識」; more literary and mostly used before nouns. Often interchangeable with 「広範囲」.
• Synonym幅広いはばひろいNeutralCovers both physical width and broad range, as in 「幅広い年齢層」「幅広い支持」; stresses variety, while 「広範囲」 stresses the size of the area covered.
• Related大規模だいきぼWrittenLarge in scale, as in 「大規模な工事」; it says nothing about how widely something is spread, whereas 「広範囲」 is about coverage. Written.
• Related広いひろいNeutralThe most versatile of these words: area, width or range all work, as in 「広い範囲」. 「広範囲」 is a ready-made noun and leans toward written prose.
• RelatedワイドNeutralLoanword meaning wide, large or broad; mostly in compounds like 「ワイド画面」. For the coverage of disasters, surveys and the like, 「広範囲」 is the usual choice.
• Related広闊こうかつWrittenWritten and rather rare; describes open, sweeping vistas. 「広範囲」 is about coverage, not scenery.
• Related広々としたひろびろとしたNeutralDescribes a roomy, open, unobstructed space, as in 「広々とした部屋」; stresses the feel of a space, while 「広範囲」 is about coverage.
• Antonym限定的げんていてきWrittenAntonym: confined to a certain range or set of conditions, as in 「限定的な効果」; the opposite of 「広範囲」's wide coverage.
• Antonym狭範囲WrittenAntonym: a narrow scope. Rarely used; in everyday speech 「狭い範囲」 is more common. Opposite of 「広範囲」's wide coverage.

Use 「広範囲」 for a large area covered or affected, as in 「広範囲にわたる被害」. For vast land or space say 「広大」; for large scale, 「大規模」; for variety across many fields, 「幅広い」. 「広範」 is a close, more literary substitute. The usual antonym is 「限定的」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 範囲はんいが広ひろいこと。また、広ひろい範囲はんい。