One of the mysteries of the English language finally explained.
Synonyms of inadequacy in English:
inadequacy
See definition of inadequacy
noun
1‘the inadequacy of available resources’
insufficiency, deficiency, scantness, scarcity, scarceness, sparseness, dearth, paucity, poverty, shortage, want, lack, undersupply
paltriness, meagreness, niggardliness
sketchiness, incompleteness, limitedness, restrictedness
rare exiguity, exiguousness
abundance, surplus
2‘her feelings of personal inadequacy’
incompetence, incapability, unfitness, ineffectiveness, ineffectuality, inefficiency, inefficacy, inexpertness, lack of skill, lack of proficiency, ineptness, uselessness, hopelessness, impotence, powerlessness
amateurishness, inferiority, unsatisfactoriness, substandardness
competence
3‘the inadequacies of the present system’
shortcoming, defect, fault, failing, weakness, weak point, limitation, flaw, imperfection, Achilles heel
loophole
strong point