insubstantial, unreal, unsubstantial

significant, considerable, sizeable, sizable, appreciable, enormous, huge, minimal, large, negligible, tremendous, massive, immense, vast, sufficient, demonstrable, modest, slight, hefty, incremental, greater, extensive, major, dramatic, meaningful, serious, noticeable, substantive, additional, measurable, disproportionate, discernable, commensurate, proportionate, colossal, inconsiderable, profound, ample, incalculable, miniscule, scant, insufficient, marginal, definite, immediate, widespread, insignificant, minuscule, small, perceptible, tangible, staggering, rapid, immeasurable, further, broad, reasonable, big, monumental, minor, statistically significant, cumulative, unprecedented, consequent, nominal, severe, strong, copious, drastic, extraordinary, gradual, excess, overwhelming, perceivable, heavy, adequate, foreseeable, insubstantial, direct, undue, worthwhile, disproportional, steep, inestimable, notable, quantifiable, limited, exponential, untold, undeniable, direct correlation, unspecified, meager, concomitant, gigantic, robust, potential, colorable, credible, diminished, numerous, continual, stantial, signif1cant, considerahle, siderable, suhstantial

analytic, analytical, body of work, cinder pig, class coniferopsida, coniferophyta, coniferophytina, coniferopsida, deep pocket, deuterium oxide, heavy water, high tea, long, oeuvre, pay dirt, run-up, runup, solid, square meal, subdivision coniferophytina, substantiality, substantially, substantialness, work

considerable, essential, hearty, in essence, material, real, satisfying, significant, solid, sound, strong, substantive, wholesome