Singing solely or mainly without instrumental accompaniment.
Related to a form of purely vocal music mostly associated with American college performance groups.
In a manner of a choir with no instrumental accompaniment; literally, "in the style of the (Sistine) Chapel (in Rome)", such as a musical Mass done a cappella.
A vocal performance with no instrumental accompaniment.
Having or showing no bias or emotional involvement; disinterested.
Not physically attached; separated from something it could connect to.
Not influenced by anyone else; characterized by an impersonal objectivity; impartial.
Of a house: not joined to another house on either side.