愚図愚図[guzuguzu] slowly
闇愚[angu] imbecility
愚か[oroka] foolish
愚かしい[orokashii] foolish
愚挙[gukyo] foolish undertaking

愚行[gukou] folly
愚妻[gusai] wife
愚人[gujin] fool
愚生[gusei] (primarily used in letters, etc.) I
愚癡[guchi] idle complaint

愚昧[gumai] stupid
三昧[sanmai] samadhi (state of intense concentration achieved through meditation)
無知蒙昧[muchimoumai] unenlightened
あい昧[aimai] vague
曖昧さ[aimaisa] ambiguity

曖昧模糊[aimaimoko] obscure
曚昧[moumai] ignorance
読書三昧[dokushozanmai] being absorbed in reading
刃物三昧[hamonozanmai] (engaging in a) knife fight
贅沢三昧[zeitakuzanmai] indulging in every possible luxury

隈無く[kumanaku] all over
然り気無い[sarigenai] nonchalant
だらし無い[darashinai] slovenly
途轍も無い[totetsumonai] extravagant
とんでも無い[tondemonai] unthinkable

無け無し[nakenashi] very small amount which looks like nothing
無駄にする[mudanisuru] to render futile
悪虐無道[akugyakubudou] treacherous
意気地無し[ikujinashi] coward
一も二も無く[ichimonimonaku] unhesitatingly

御知らせ[oshirase] notice
かも知れない[kamoshirenai] may
かも知れません[kamoshiremasen] may
愛知県[aichiken] Aichi prefecture (Chuubu area)
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial

一知半解[icchihankai] superficial knowledge
伺い知る[ukagaishiru] to perceive
窺知[kichi] perception
恩知らず[onshirazu] ingratitude
われ知らず[wareshirazu] involuntarily