| 不況 | ふきょう | recession, depression, slump |
| 不安 | ふあん | anxiety, uneasiness, insecurity, suspense |
| 不足 | ふそく | insufficiency, shortage, deficiency, lack, dearth |
| 不動産 | ふどうさん | real estate |
| 不満 | ふまん | dissatisfaction, displeasure, discontent, complaints, unhappiness, disgruntled |
| 不明 | ふめい | unknown, obscure, indistinct, uncertain, ambiguous, ignorant, lack of wisdom, anonymous, unidentified |
| 心不全 | しんふぜん | heart failure |
| 不信 | ふしん | unfaithfulness, insincerity, perfidy, mistrust, distrust, discredit |
| 不祥事 | ふしょうじ | scandal, deplorable event |
| 不振 | ふしん | dullness, depression, slump, stagnation |
