SYN: Spiritual, incorporeal, unimportant, insignificant, trivial, trifling, unessential.
ANT: Material, physical, corporeal, essential, Important.
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KEY: Immature.
SYN: Unripe, green, crude, imperfect, unfinished, undeveloped.
ANT: Ripe, complete, finished, mature, developed.
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KEY: Immeasurable.
SYN: Vast, boundless, illimitable, immense, unfathomable, infinite.
ANT: Finite, bounded, limited, circumscribed, shallow, restricted.