のろま・鈍間・野呂間・野呂松noroma[0]heiban (flat)

1. noun, na-adjectiveblockhead; dunce; dimwit; dolt; slowcoach; slowpoke

• SynonymアホCasualColloquial, especially in Kansai, for calling someone stupid; can be affectionate teasing or a harsh scolding. Unlike 「のろま」, it does not stress slow movement.
• SynonymばかCasualThe most common way to call someone stupid, ranging from light to severe; 「のろま」 stresses slow movement, slow reactions and a lack of quickness.
• Synonym間抜けまぬけCasualRefers to blundering or looking silly through a lapse where it matters, as in 「間抜けな顔」; stresses carelessness and dimness rather than the slowness of 「のろま」.
• SynonymとんまCasualOld-fashioned colloquialism for a muddle-headed, slow person, with a comic feel; close in sense to 「間抜け」 and 「のろま」, now rarely used.
• Synonym愚鈍ぐどんWrittenWritten Sino-Japanese term for a dull mind and slow reactions, also used to disparage someone; feels stiffer than colloquial 「のろま」.
• Synonym馬鹿者ばかものCasualA harsh insult for a fool, mostly in scolding, as in 「この馬鹿者！」; does not stress slow movement.
• SynonymうすばかCasualColloquial, contemptuous term for someone a bit stupid; stresses dimness of mind, not slow movement.
• Synonymたわけ者たわけものCasualA fool who acts the clown; the tone is old-fashioned, heard in scoldings in period dramas. 「のろま」 stresses slow movement.
• Synonym遅鈍ちどんWrittenWritten word for slow movement or reactions, close to the slowness sense of 「のろま」, but not normally shouted at someone as an insult.
• Synonym痴鈍ちどんWrittenWritten word, used rarely and mostly in written assessment, for someone both stupid and slow; close to 「のろま」, the usual spoken insult.
• Synonym魯鈍ろどんWrittenArchaic written term for stupidity and low ability, with few examples; stiffer than 「のろま」, weighted toward dullness of mind.
• SynonymあんぽんたんCasualColloquial name for a muddle-headed fool, in the same family as 「阿呆」 and 「馬鹿」; unlike 「のろま」 it does not stress slow movement.
• SynonymぼんくらCasualColloquial for a muddled person who lacks judgement; 「のろま」 stresses slow movement and dull reactions.
• Synonym脳たりんのうたりんCasualSlang for someone with no brains; a strong insult to use with care in daily life, more hurtful than 「のろま」.
• SynonymばかたれCasualDialectal colloquialism for an utter fool, common in Kyushu and nearby areas; stronger than 「のろま」.
• SynonymぽんつくCasualOld-fashioned colloquialism for a scatterbrained person, now rare; stresses muddled-headedness rather than slow movement.
• SynonymスカタンCasualKansai colloquialism for a useless, disappointing person; stresses letting people down rather than slow movement.
• SynonymあほんだらCasualCoarse Kansai word, an intensified 「阿呆」; a very heavy insult, not specifically about dullness.
• Synonym甚六じんろくCasualA dim-witted person, best known from 「総領の甚六」 (eldest sons are often simple souls); 「のろま」 stresses slow movement and dullness.
• Synonym低能ていのうNeutralRefers to low intelligence; discriminatory in tone and best avoided today. 「のろま」 stresses slow movement.
• Synonym低能者ていのうしゃNeutralA person of low intelligence; a discriminatory term to avoid in modern usage, and not used about slow movement.
• Synonym抜け作ぬけさくCasualOld-fashioned colloquialism for a blockhead who bungles things for lack of sense, now rare; stresses cluelessness.
• Synonym愚か者おろかものNeutralA foolish person, leaning written, as in 「愚か者め」; stresses foolishness rather than slow movement.
• Synonym愚物ぐぶつWrittenWritten, contemptuous label for a fool, used rarely; stresses stupidity, not specifically slow movement.
• Antonym敏速びんそくWrittenAntonym: quickness and agility, leaning written, as in 「敏速な対応」; the opposite of slow-moving 「のろま」.
• Antonym素早いすばやいNeutralAntonym: quick and nimble in action and reaction, common in everyday speech; the opposite of sluggish 「のろま」.

Use 「のろま」 to call someone slow-moving or slow to react, as in 「こののろま！」. For calling someone stupid, 「馬鹿」 is the default, 「アホ」 in Kansai, and 「間抜け」 for a muddled blunderer. The written Sino-Japanese words (「愚鈍」「遅鈍」「魯鈍」) sound stiffer; old-fashioned or dialect words like 「頓馬」「たわけ者」「馬鹿たれ」 add flavor; 「脳たりん」 and 「阿呆陀羅」 are much harsher; avoid 「低能」 and 「低能者」 as discriminatory. Antonyms: 「素早い」 in everyday speech, 「敏速」 in writing.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 挙動きょどうが遅おそいこと、また愚鈍ぐどんで気きが利きかないさま。
2. のろま人形にんぎょう。