The Oxford Thesaurus An A-Z Dictionary of Synonyms - aloof adv.

1) apart, away, at a distance, separate; at arm's length: We invited Martha to join us but she preferred to remain aloof. --adj. 2) private, reticent, reserved, withdrawn, haughty, supercilious, standoffish, formal, unsociable, unsocial; distant, remote: Deirdre is quite an aloof sort of person - not what you would call a 'mixer'. 3) standoffish, distant, remote, cool, chilly, unresponsive, unfriendly, antisocial, unapproachable; unsympathetic, apathetic, indifferent, undemonstrative: Roger keeps himself aloof from the needs of those less fortunate than he is.