na-adjective, noun which may take the genitive case particle 'no', noun
left open; left ajar
Describes a door, window, or container that has been left open or ajar, often unintentionally or carelessly. Can be used as a noun or adjectivally with な or の.
See also: 開けっ放し
窓が開け放しになっている。
The window has been left open.
ドアを開け放しに
Please don't leave the door open.
na-adjective, noun which may take the genitive case particle 'no', noun
Figurative extension of the 'left open' sense, describing a person who speaks their mind openly without holding back. Often used with な or の.
彼は開け放しな性格で、何でもはっきり言う。
He has an outspoken personality and says everything clearly.