3-D, airy, amateur, amateurish, ankle-deep, apparent, appearing, arid, asinine, barren, birdbrained, birdwitted, blah, blank, bloodless, catchpenny, characterless, cold, colorless, conventionalized, cortical, cosmetic, critical, cubic, cursory, dabbling, dead, depthless, dilettante, dilettantish, dimensional, dismal, draggy, drearisome, dreary, dry, dryasdust, dull, dusty, effete, elephantine, empty, epidermal, epidermic, etiolated, exomorphic, expeditious, exterior, external, extrinsic, fade, fatuous, featherbrained, festinate, feverish, few, flat, flighty, flimsy, fluffy, flying, foolish, footling, formal, formalist, formalistic, formulary, fourth-dimensional, fribble, fribbling, fringe, frivolous, frothy, furious, futile, general, half-assed, half-baked, half-cocked, hasty, heavy, ho-hum, hollow, hurried, idle, immature, immediate, impersonal, inane, inconsequential, inconsiderable, inexcitable, insignificant, insipid, instant, insubstantial, jejune, knee-deep, last-minute, leaden, legalistic, lifeless, light, little, low-spirited, low, meager, meaningless, miniature, negligible, no great shakes, nominal, not deep, nugacious, nugatory, on the spot, on the surface, open, ostensible, otiose, out, outer, outermost, outlying, outmost, outside, outstanding, outward-facing, outward, pale, pallid, passing, pedantic, pedestrian, perfunctory, peripheral, petty, picayune, picayunish, plodding, pointless, poky, ponderous, prompt, proportional, public, quick, roundabout, sciolistic, seeming, shallow-headed, shallow-minded, shallow-pated, shallow-rooted, shallow-witted, shallow, shoal, short, silly, sketchy, skin-deep, slap-bang, slapdash, slender, slight, slow, small, smattering, snap, solemn, sophomoric, space-time, space, spatial, spatiotemporal, speedy, spherical, spiritless, stereoscopic, sterile, stiff, stodgy, stuffy, stylized, surface, swift, tasteless, tedious, thin, three-dimensional, tiny, trifling, trite, trivial, two-dimensional, uncritical, unimportant, unlively, unprofound, urgent, vacuous, vain, vapid, visible, volatile, volumetric, windy, wooden