不況【ふきょう】
depression, recession, slump
不動産【ふどうさん】
real estate
不足【ふそく】
insufficiency, deficiency, shortage, lack, scarcity, deficit, dissatisfaction, discontent, complaint
不満【ふまん】
dissatisfaction, discontent, displeasure, complaint, unhappiness
不安【ふあん】
anxiety, uneasiness, worry, apprehension, fear, insecurity, suspense
不明【ふめい】
unclear, obscure, indistinct, uncertain, ambiguous, unknown, unidentified, ignorance, lack of wisdom, lack of insight
不信【ふしん】
distrust, mistrust, disbelief, discredit, insincerity, impiety, faithlessness
不振【ふしん】
dullness, slump, stagnation, inactivity, depression
不正【ふせい】
injustice, unfairness, wrongdoing, iniquity, impropriety, irregularity, dishonesty, illegality, fraud
不透明【ふとうめい】
opaque, obscure, murky, turbid, opacity, obscurity, unclear, unpredictable, uncertain
不祥事【ふしょうじ】
scandal, impropriety, misconduct
不安定【ふあんてい】
instability, insecurity, crankiness
不当【ふとう】
injustice, impropriety, unreasonableness, undeserved, unfair, invalid
不法【ふほう】
unlawful, illegal, unreasonable, outrageous, unjust, unwarranted
不十分【ふじゅうぶん】
insufficient, inadequate, imperfect
不良【ふりょう】
bad, poor, inferior, defective, delinquent, hoodlum, hooligan
不在【ふざい】
absence, disregard, indifference
不自由【ふじゆう】
discomfort, inconvenience, poverty, want, destitution, inability, disability, impairment (physical, mental, etc.), nonfluency (in a language)
不可能【ふかのう】
impossible
不可欠【ふかけつ】
indispensable, essential