Na-adjective (keiyodoshi), Nounthickheaded; insensitive; dull; thick-skinned

Noun, Na-adjective (keiyodoshi)blockhead; dunce; dimwit; dolt; slowcoach; slowpoke

I-adjective (keiyoushi)dull (e.g. a knife); blunt · thickheaded; obtuse; stupid · dull (sound, color, etc.); dim (light)

I-adjective (keiyoushi)thickheaded; obtuse; stupid · slow; sluggish; inert; lethargic · indulgent (esp. to the opposite sex); doting

Noun, Suru verb, Intransitive verbbecoming dull; slowing down

Nounblunt weapon

Godan verb with 'ru' ending, Intransitive verbto become blunt; to grow dull · to become less capable; to weaken; to falter

Na-adjective (keiyodoshi), Noundull; slow; stupid; dull-brained

Na-adjective (keiyodoshi), Nounthickheaded; slow-witted; phlegmatic; stolid; bovine · slow (of one's movements); sluggish

Na-adjective (keiyodoshi), Nounslow-witted

Na-adjective (keiyodoshi)blunt (e.g. sword); dull · lazy; cowardly; good for nothing

I-adjective (keiyoushi)frustratingly slow

I-adjective (keiyoushi)slow; clumsy; slow-witted; stupid

Nounobtuse angle

Nounlocal train; slow train

Noundull pain

Noun, Suru verb, Intransitive verbbecoming numb; becoming desensitized

Nounsilk damask; satin damask

Nounstupidity; dull person; dullness

Noundull or blunt sword

Noun, Noun which may take the genitive case particle 'no'dark gray; dark grey · donjiki (clerical dress)

Nounslow-footed

Nounblockhead; a fool

Noundark sleeper (species of sleeper goby, Odontobutis obscura)

Noun, Noun which may take the genitive case particle 'no'obtuse (of the shape of a leaf); rounded

Adj Kuslow

Godan verb with 'su' ending, Transitive verbto anneal

Noun, Suru verb, Intransitive verbbecoming dull (of a knife, one's wits, etc.); becoming blunt

Adverb (fukushi), Adverb taking the 'to' particle, Suru verbslowly; sluggishly

Expressions (phrases, clauses, etc.), Noundull sound; muffled sound

Noun, Noun which may take the genitive case particle 'no'dull yellow

Godan verb with 'su' ending, Transitive verbto blunt; to dull; to weaken

Noundullard (gen. from not picking up on other people's feelings)

Nounloris

Suru verb - special class, Intransitive verbto become dim-witted; to lose one's edge; to become insensitive

NounThe Power of Insensitivity (book by Junichi Watanabe)

Nounobtuse triangle