lack
noun
a lack of cash:
absence, want, need, deficiency, dearth, insufficiency, shortage, shortfall, scarcity, paucity, unavailability, scarceness, undersupply, deficit, scantiness, sparseness, meagerness, inadequacy, shortness, deprivation, destitution, privation, famine, drought, poverty, nonexistence, rareness, infrequency, uncommonness;
rare exiguity, exiguousness.
▷antonyms abundance; sufficiency.
verb
she's immature and lacks judgment:
be without, have need of, be in need of, need, be lacking, require, want, feel the want of, be short of, be deficient in, stand in need of, go without, be bereft of, be deprived of, be low on, be pressed for, not have enough of, be devoid of, have insufficient, cry out for;
miss;
informal be clean/fresh out of, be strapped for.
▷antonyms have, own, possess, enjoy.