lack

n

1. want, deficiency, deprivation, need; absence, nonexistence, emptiness, void, vacancy; something missing, missing ingredient or link; omission, gap, hole, break, discontinuity, interval, deletion, hiatus, lacuna.

2. shortcoming, inadequacy, imperfection, inferiority, deficit, insufficiency, short measure; defectiveness, impairment, incompleteness, unevenness, patchiness, sketchiness; shortage, scarcity, scarceness, dearth, meagerness, sparsity, scantiness, paucity; poverty, impoverishment, destitution, famine, malnutrition, hunger, starvation, drought; wantage, underage, defalcation, arrearage, outage, ullage.

3. fault, defect, kink, flaw, crack, rift, weakness, frailty, failing, foible, weak point, chink in one's armor, weak link, Achilles' heel; mediocrity, underdevelopment, immaturity, inferiority, second-ratedness; decline, slump, failure.

v

4. need, require, find necessary; want, fall short of, miss, feel the want of, stand in need of.

5. fall short, not measure up, not reach, not make it, be found wanting, not pass muster, not bear inspection; fall flat, fall down, come to nothing or naught, fizzle out, go up in smoke, be tried and found wanting, not be sufficient, not fill the bill, not answer; come short, run short, not reach the mark, not come up to par or to the mark, Sl. not cut or hack it, Inf. not make the grade, Inf. not come up to scratch; decline, collapse, lag, slump; lose ground, stop short, fail