detachment

(noun) avoiding emotional involvement. Synonyms: withdrawal.

(noun) the act of releasing from an attachment or connection. Synonyms: disengagement.

(noun) the state of being isolated or detached. Synonyms: insulation, insularity, insularism. Example: "The insulation of england was preserved by the english channel."

(noun) a small unit of troops of special composition.

(noun) coming apart. Synonyms: separation, breakup.