SPACIOUS, SPACIOUSLY, SPACIOUSNESS
ADJECTIVES
1000 — BROAD vast, extensive, spacious
1000 — SIDE spacious, large, ample, extensive → obs.
1225 — LARGE spacious, roomy, capacious; allowing plenty of room → obs.
1400 — BROAD-BUILT constructed so as to be wide or spacious
1447 — COMMODIOUS of a building, place, etc.: conveniently or comfortably spacious
1483 — AMPLE roomy, spacious
1548 — WIDE-ROOMED spacious → obs.
1549 — ROOMY having much room; spacious; capacious
1578 — ROOMTHY spacious, ample, roomy → Eng. dial.
1599 — ROOMTHSOME spacious, roomy → obs.
1599 — SCOPIOUS spacious, wide → obs.
1602 — SPACY large, extensive; spacious, roomy
1621 — SPACEFUL spacious, commodious; wide, extensive
1632 — DIMENSIOUS having great dimension or magnitude; spacious, extensive → obs.
1656 — CAPACIOUS roomy, spacious, wide
1682 — ROOMLY spacious, capacious → now Eng. dial.
1880 — RANGY spacious, giving scope for ranging; said of places → chiefly US
ADVERBS
1768 — ROOMILY with plenty of room; spaciously, amply
NOUNS
1400 — WASTY WANES a spacious place → obs.
1590 — SCOPE extent in space, spaciousness
1620 — SPACIOSITY spaciousness; extensiveness
1650 — LAXITY spaciousness → obs.
1755 — ROOMINESS a being roomy or spacious