不況【ふきょう】
depression, recession, slump
不満【ふまん】
dissatisfaction, discontent, displeasure, complaint, unhappiness
不動産【ふどうさん】
real estate
不明【ふめい】
unclear, obscure, indistinct, uncertain, ambiguous, unknown, unidentified, ignorance, lack of wisdom, lack of insight
不足【ふそく】
insufficiency, deficiency, shortage, lack, scarcity, deficit, dissatisfaction, discontent, complaint
不安【ふあん】
anxiety, uneasiness, worry, apprehension, fear, insecurity, suspense
不信【ふしん】
distrust, mistrust, disbelief, discredit, insincerity, impiety, faithlessness
不透明【ふとうめい】
opaque, obscure, murky, turbid, opacity, obscurity, unclear, unpredictable, uncertain
不振【ふしん】
dullness, slump, stagnation, inactivity, depression
不正【ふせい】
injustice, unfairness, wrongdoing, iniquity, impropriety, irregularity, dishonesty, illegality, fraud
不祥事【ふしょうじ】
scandal, impropriety, misconduct
不十分【ふじゅうぶん】
insufficient, inadequate, imperfect
不当【ふとう】
injustice, impropriety, unreasonableness, undeserved, unfair, invalid
不法【ふほう】
unlawful, illegal, unreasonable, outrageous, unjust, unwarranted
不安定【ふあんてい】
instability, insecurity, crankiness
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)
不可欠【ふかけつ】
indispensable, essential
不要【ふよう】
unnecessary, unneeded