noun which may take the genitive case particle 'no', na-adjective
Describes something that has become hard or stiff due to freezing, drying, or similar physical change. Often used for food, ground, or objects.
冷凍庫に入れておいた肉がこちんこちんに凍っている。
The meat I put in the freezer is frozen solid.
洗濯物が寒さでこちんこちんになった。
The laundry became stiff from the cold.
noun which may take the genitive case particle 'no', na-adjective
wound up; tense; stiff with nerves
Describes a person who is very tense, nervous, or rigid in behavior, as if frozen. Often used for someone who is overly formal or anxious.
初めての面接で、彼はこちんこちんに緊張していた。
At his first interview, he was so tense he was practically rigid.
彼女はこちんこちんの表情でスピーチを始めた。
She started her speech with a very stiff expression.
A mimetic word (擬態語) derived from the sound or sensation of something becoming hard or stiff. The exact origin is uncertain, but it follows a common reduplicative pattern for describing states.