noun, noun which may take the genitive case particle 'no'
excitable disposition; hot-headedness
Refers to a personality trait of being easily excited or quick to react emotionally. Often used in medical or psychological contexts, but can appear in everyday descriptions of temperament.
He has an excitable disposition and gets angry quickly.
A hot-headed personality sometimes troubles those around them.
severe fever with thrombocytopenia syndrome; SFTS
Compound of 熱 (netsu, 'heat, fever') and 性 (sei, 'nature, disposition'). The reading ねっせい results from the assimilation of ねつ + せい.