General composition or structure; manner in which the parts of a thing are combined; arrangement; format; make-up; style of dress, etc. H. Kingsley. [1913 Webster]
A set of clothing (with accessories); as, what are you doing in that getup?; -- often used with implied disapproval or scorn. [WordNet 1.5]

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THESAURUS

getup

accouterments, adventuresomeness, adventurousness, aggression, aggressiveness, ambitiousness, anatomy, architectonics, architecture, arrangement, assemblage, assembly, ballet skirt, bang, build, building, buildup, buskin, cap and bells, caparison, combination, composition, compound, conformation, constitution, construction, costume, creation, disguise, dress, drive, dynamism, embodiment, enterprise, enterprisingness, fabric, fabrication, fashion, fashioning, force, forcefulness, forging, form, format, formation, frame, furnishings, get-up-and-get, get-up-and-go, go, go-ahead, go-getting, go-to-itiveness, guise, gumption, harness, hustle, incorporation, initiative, junction, livery, make, makeup, making, manufacture, masquerade, mixture, mold, molding, motley, organic structure, organism, organization, outfit, pattern, patterning, pep, physique, piecing together, plan, production, punch, push, pushfulness, pushiness, pushingness, putting together, rig, setout, setup, shape, shaping, snap, sock, spirit, spunk, structure, structuring, syneresis, synthesis, tectonics, texture, things, tights, tissue, trappings, trousseau, turnout, tutu, up-and-comingness, venturesomeness, venturousness, vitality, wardrobe, warp and woof, weave, web

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