不
| Level 3 vocabulary | ||
| 不便 | (adj-na,n) inconvenience/ inexpediency/ unhandiness/ (P) | |
| Level 2 vocabulary | ||
| 不〜 | un/ non/ negative prefix | |
| 不安 | (adj-na,n) anxiety/ uneasiness/ insecurity/ suspense/ (P) | |
| 不運 | (adj-na,n) unlucky/ misfortune/ bad luck/ fate/ (P) | |
| 不可 | (n,n-suf) wrong/ bad/ improper/ unjustifiable/ inadvisable/ (P) | |
| 不規則 | (adj-na,n) irregularity/ unsteadiness/ disorderly/ (P) | |
| 不潔 | (adj-na,n) unclean/ dirty/ filthy/ impure/ (P) | |
| 不幸 | (adj-na,n) unhappiness/ sorrow/ misfortune/ disaster/ accident/ death/ (P) | |
| 不思議 | (adj-na,n) wonder/ miracle/ strange/ mystery/ marvel/ curiosity/ (P) | |
| 不自由 | (adj-na,n) discomfort/ disability/ inconvenience/ destitution/ (P) | |
| 不正 | (adj-na,n) injustice/ unfairness/ iniquity/ impropriety/ irregularity/ dishonesty/ illegality/ (P) | |
| 不足 | (adj-na,n,vs) insufficiency/ shortage/ deficiency/ lack/ dearth/ (P) | |
| 不通 | (n) suspension/ interruption/ stoppage/ tie-up/ cessation/ (P) | |
| 不当 | (adj-na,n) injustice/ impropriety/ unreasonableness/ undeservedness/ unfair/ invalid/ (P) | |
| 不平 | (adj-na,n) complaint/ discontent/ dissatisfaction/ (P) | |
| 不満 | (adj-na,n) dissatisfaction/ displeasure/ discontent/ complaints/ unhappiness/ (P) | |
| 不利 | (adj-na,n) disadvantage/ handicap/ unfavorable/ drawback/ (P) | |
| 不良 | (adj-na,n) badness/ delinquent/ inferiority/ failure/ (P) | |
| Level 1 vocabulary | ||
| 不意 | (adj-na,adj-no,n) sudden/ abrupt/ unexpected/ unforeseen/ (P) | |
| 不可欠 | (adj-na,n) indispensable/ essential/ (P) | |
| 不吉 | (adj-na,n) ominous/ sinister/ bad luck/ ill omen/ inauspiciousness/ (P) | |
| 不況 | (adj-na,n) recession/ depression/ slump/ (P) | |
| 不景気 | (adj-na,n) business recession/ hard times/ depression/ gloom/ sullenness/ cheerlessness/ (P) | |
| 不在 | (n) absence/ (P) | |
| 不順 | (adj-na,n) irregularity/ unseasonableness/ (P) | |
| 不審 | (adj-na,n) incomplete understanding/ doubt/ question/ distrust/ suspicion/ strangeness/ infidelity/ (P) | |
| 不振 | (adj-na,n) dullness/ depression/ slump/ stagnation/ (P) | |
| 不調 | (adj-na,n) bad condition/ not to work out (ie a deal)/ disagreement/ break-off/ disorder/ slump/ out of fo | |
| 不動産 | (n) real estate/ (P) | |
| 不評 | (n) bad reputation/ disgrace/ unpopularity | |
| 不服 | (adj-na,n) dissatisfaction/ discontent/ disapproval/ objection/ complaint/ protest/ disagreement/ (P) | |
| 不明 | (adj-na,n) unknown/ obscure/ indistinct/ uncertain/ ambiguous/ ignorant/ lack of wisdom/ anonymous/ unidenti | |