con·serv·a·tive / kənˈsərvətiv; -vəˌtiv/ • adj. holding to traditional attitudes and values and cautious about change or innovation, typically in relation to politics or religion. ∎ (of dress or taste) sober and conventional. ∎ (of an estimate) purposely low for the sake of caution. ∎ (of surgery or medical treatment) intended to control rather than eliminate a condition, with existing tissue preserved as far as possible. ∎ (Conservative) of or relating to the Conservative Party of Great Britain or a similar party in another country.• n. a person who is averse to change and holds to traditional values and attitudes, typically in relation to politics. ∎ (Conservative) a supporter or member of the Conservative Party of Great Britain or a similar party in another country.DERIVATIVES: con·serv·a·tism / kənˈsərvəˌtizəm/ n.con·serv·a·tive·ly adv.con·serv·a·tive·ness n.