impersonal adj.
1 not showing friendly human feelings
VERBS be, seem | become | find sth I find the atmosphere there rather impersonal.
ADV. very | totally | a bit, rather | coldly, coolly His voice was coolly impersonal. | oddly
2 not referring to any particular person
VERBS be | keep sth I think we should keep things entirely impersonal.
ADV. absolutely, completely, entirely, totally
You can also check other dicts: impersonal (English, 中文解释 ), wordnet sense, Collins Definition