What is another word for "deficient"?

Roget's Thesaurus (1911) lists these synonyms for "deficient": and, arrear, back, balance, become, below, bottom, break, candle, caret, come, commonalty, complete, contract, contracted, crude, decrease, defalcation, default, defect, defective, deficiency, deficit, disadvantage, discontinuity, ebb, failing, fall, fiddle, fit, found, gap, going, half, halves, hand, head, hide, hold, hole.