reserve; reticence; estrangement
Refers to a feeling of emotional distance or guardedness between people. Most often used in negative constructions such as 隔意なく or 隔意のない, meaning 'without reserve' or 'openly'.
He stated his opinion without reserve.
To interact with an open, unreserved attitude.
Compound of 隔 (かく, 'separate, distance') and 意 (い, 'mind, feeling'). The literal sense is 'separated feelings', referring to emotional distance or reserve.