| Main Entry: | |
| Part of Speech: | noun |
| Definition: | imperfection, inadequacy |
| Synonyms: | absence, bug*, dearth, defalcation, default, defect, deficit, demerit, dereliction, failing, failure, fault, flaw, frailty, glitch*, inability to hack it, insufficience, insufficiency, lack, loss, need, neglect, paucity, privation, scantiness, scarcity, shortage, shortcoming, sin, want, weakness |
| Antonyms: | adequacy, enough, faultlessness, perfection, plenty, satisfaction, sufficiency, superfluity |
| Main Entry: | absence |
| Part of Speech: | noun |
| Definition: | state of lacking something needed or usual |
| Synonyms: | dearth, deficiency, drought, inadequacy, insufficiency, lack, need, omission, privation, unavailability, void, want |
| Antonyms: | abundance, enough, plenty |
| Main Entry: | Achilles' heel |
| Part of Speech: | noun |
| Definition: | vulnerability |
| Synonyms: | chink in the armor, deficiency, frailty, handicap, soft underbelly, susceptibility, weakness |
| Main Entry: | arrears |
| Part of Speech: | noun |
| Definition: | debt |
| Synonyms: | back payment, balance due, claim, debit, deficiency, deficit, liability, obligation, unpaid bill |
| Main Entry: | dearth |
| Part of Speech: | noun |
| Definition: | insufficiency, scarcity |
| Synonyms: | absence, default, defect, deficiency, exiguousness, famine, inadequacy, infrequency, lack, meagerness, miss, need, paucity, poverty, privation, rareness, scantiness, scantness, shortage, slim pickings, sparsity, uncommonness, want |
| Antonyms: | abundance, excess, plentifulness, plenty, sufficiency |
| Main Entry: | default |
| Part of Speech: | noun |
| Definition: | failure; want |
| Synonyms: | absence, blemish, blunder, dearth, defect, deficiency, delinquency, dereliction, disregard, error, fault, imperfection, inadequacy, insufficiency, lack, lapse, miss, neglect, nonpayment, offense, omission, overlooking, oversight, privation, shortcoming, slight, transgression, vice, weakness, wrongdoing |
| Antonyms: | advantage, payment, perfection, satisfaction, success |
| Main Entry: | defect |
| Part of Speech: | noun |
| Definition: | blemish, imperfection |
| Synonyms: | birthmark, blot, blotch, break, bug, catch, check, crack, deficiency, deformity, discoloration, drawback, error, failing, fault, flaw, foible, frailty, gap, glitch, gremlin, hole, infirmity, injury, irregularity, kink, knot, lack, mark, marring, mistake, patch, rift, rough spot, scar, scarcity, scratch, seam, second, shortage, shortcoming, sin, speck, spot, stain, taint, unsoundness, vice, want, weak point, weakness |
| Antonyms: | advantage, improvement, perfection, strength |
| Main Entry: | defection |
| Part of Speech: | noun |
| Definition: | abandonment |
| Synonyms: | alienation, apostasy, backsliding, deficiency, dereliction, desertion, disaffection, disloyalty, disownment, divorce, estrangement, failing, failure, faithlessness, forsaking, lack, parting, rebellion, recreancy, rejection, repudiation, retreat, revolt, separation, severance, sundering, tergiversation, withdrawal |
| Antonyms: | joining |
| Main Entry: | deficit |
| Part of Speech: | noun |
| Definition: | shortage of something needed, required |
| Synonyms: | arrears, dead horse, defalcation, default, deficiency, due bill, dues, in hock, in the hole, in the red, inadequacy, insufficience, insufficiency, lack, loss, paucity, red ink, scantiness, shortcoming, shortfall, underage |
| Antonyms: | enough, excess, plenty, superfluousness |