/aɪˈdi:əlɪzəm ||; aɪˈdiəlˌɪzəm/noun [U] the belief that a perfect life, situation, etc can be achieved, even when this is not very likely 理想主义（认为完美的生活、境地等终可达到，即使不大可能）: Young people are usually full of idealism. 年轻人一般都充满理想主义。 ☞ Look at realism. 参看realism。 ➔idealist noun [C]:Most people are idealists when they are young. 人们年轻时大都是理想主义者。 ➔idealistic /ˌaɪdɪəˈlɪstɪk ||; aɪˌdɪəlˈɪstɪk/ adj