不安【ふあん】
anxiety, uneasiness, worry, apprehension, fear, insecurity, suspense
不思議【ふしぎ】
wonderful, marvelous, strange, incredible, amazing, curious, miraculous, mysterious, strangely enough, oddly enough, for some reason, curiously
不明【ふめい】
unclear, obscure, indistinct, uncertain, ambiguous, unknown, unidentified, ignorance, lack of wisdom, lack of insight
不可能【ふかのう】
impossible
不満【ふまん】
dissatisfaction, discontent, displeasure, complaint, unhappiness
不要【ふよう】
unnecessary, unneeded
不幸【ふこう】
unhappiness, sorrow, misfortune, disaster, accident, death (usu. of a relative), bereavement
不足【ふそく】
insufficiency, deficiency, shortage, lack, scarcity, deficit, dissatisfaction, discontent, complaint
不良【ふりょう】
bad, poor, inferior, defective, delinquent, hoodlum, hooligan
行方不明【ゆくえふめい】
missing (of a person), lost, unaccounted for, whereabouts unknown
不況【ふきょう】
depression, recession, slump
不信【ふしん】
distrust, mistrust, disbelief, discredit, insincerity, impiety, faithlessness
心不全【しんふぜん】
heart failure
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
不全【ふぜん】
partial, incomplete, imperfect
不祥事【ふしょうじ】
scandal, impropriety, misconduct
不法【ふほう】
unlawful, illegal, unreasonable, outrageous, unjust, unwarranted
不信任【ふしんにん】
non-confidence, lack of confidence
不動【ふどう】
immovable, motionless, firm, unwavering, unshakable, steadfast, Acala (Wisdom King), Fudō, fierce Buddhist deity