むかむかmukamuka

1. adverb (with と), suru verbfeeling sick; feeling queasy; feeling nauseated
2. adverb (with と), suru verbbeing angry; being offended; being disgusted
   彼かれのふるまいを見みたらむかむかした。↗

   I felt disgust at his behavior.

• Synonym吐き気はきけNeutralThe everyday noun for nausea, as in 「吐き気がする」. 「ムカムカ」 is a mimetic word that paints the feeling itself.
• Synonym嘔気おうきWrittenMedical term read 「おうき」 for a feeling of nausea, seen in medical records and package inserts. In everyday speech people say 「吐き気」.
• Synonym悪心おしんWrittenMedical term read 「おしん」 for the urge to vomit. Formal, clinical wording.
• RelatedむかつきNeutralNoun form of 「むかつく」. Covers both nausea and rising anger. The kanji spelling is rare; the word is usually written in kana.
• AntonymすっきりNeutralFeeling clear and refreshed, with nothing sitting heavily — the opposite of the tight, queasy chest feeling of 「ムカムカ」.
• AntonymさっぱりNeutralA mood that feels refreshed and relieved; the opposite of the bottled-up anger or queasiness of 「ムカムカ」.

Use 「ムカムカする」 for both queasiness and rising anger. For the noun, 「吐き気」 is the everyday choice; 「嘔気」 and 「悪心」 are formal medical terms. 「むかつき」 is the noun form, usually written in kana. 「すっきり」 and 「さっぱり」 are the refreshing opposites.

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

1. 吐き気はきけがするさま。
2. 怒いかりが込み上こみあげるさま。