1.

1. Tonight there will be a tribal ceremonial of great importance to mark the chief''s birthday.
    今晚有一项重要的部族庆典，庆祝酋长的生日。

1. 仪式的：ceraunograph 雷电计 | ceremonial 仪式的 | ceremony 典礼

2.

2. 仪式方面的：24. ceremonious 拘于俗义的 | ceremonial 仪式方面的 | 25. cheap 便宜的(品质不佳)

3. 仪式的;礼节的：cereal 谷类,五谷,禾谷 | ceremonial 仪式的;礼节的 | ceremony 典礼,仪式;礼节,礼仪

1. 仪式的;礼节的
    Something that is ceremonial relates to a ceremony or is used in a ceremony.

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    e.g. He represented the nation on ceremonial occasions...
           他在正式场合代表国家。
    e.g. Feathers of various kinds are used by Native Americans for ceremonial purposes.
           美洲印第安人在举行仪式时用到各种羽毛。

2. (职位、功能或事件)礼仪性的，象征性的
    A position, function, or event that is ceremonial is considered to be representative of an institution, but has very little authority or influence.

    e.g. Up to now the post of president has been largely ceremonial.
           到目前为止，总统一职在很大程度上只是礼仪性的。

3. 仪式;典礼;礼节
    Ceremonial consists of all the impressive things that are done, said, and worn on very formal occasions.

    e.g. ...papal ceremonial.
           教皇加冕仪式
    e.g. ...the ceremonials leading up to the young Emperor''s wedding.
           年轻皇帝大婚前的典礼

4. 同 ceremony
    A ceremonial is a ceremony.

    e.g. ...a religious ceremonial.
           宗教仪式

1. a formal event performed on a special occasion

    e.g. a ceremony commemorating Pearl Harbor

    Synonym: ceremonyceremonial occasionobservance

1. marked by pomp or ceremony or formality

    e.g. a ceremonial occasion
           ceremonial garb