权威性的英文：
authoritative
(having) authority

参考例句：

For all its power and commanding influence, the social gospel movement was a development in urban Protestantism.
从社会福音运动的全部力量和权威性影响来看，它是城市新教的一种发展。

To forbid or prohibit authoritatively.
权威性的禁止或消除

This is a standard map.
这是一份有权威性的地图。

Her voice was crisp and authoritative.
她的声音干脆利落，具有权威性。

Assert one's authority,independence,rights
坚持自己的权威性,独立性,权利.

They acquire authority from their predictive power.
它们的权威性来自其预测事物的能力。

An authoritative or dogmatic statement or decree.
命令一种权威性的或武断的话或法令

An official or authoritarian declaration; a proclamation or an edict.
宣言,公告官方或权威性的宣布;公告或法令

the pope speaking ex cathedra;ex cathedra determinations.
教皇讲话有权威性;权威的决断

The arBiter will have the last say in resolving this dispute.
仲裁者对解决这次争端有权威性的发言权

authoritative是什么意思：
adj. 专断的，权威式的；权威的当局的

Her voice was crisp and authoritative.
她的声音干脆利落，具有权威性。

Is this an authoritative order or a personal request?
这是官方的命令还是个人的要求？

It is a most authoritive locus on a subject.
这是一段关于某问题的最权威性的章节。

having是什么意思：
n. 所有；持有物；所有财产

having or as if having especially high-pitched spots.
具有或者好像具有声调特别高的点。

The gap between the haves and the have-nots is widening.
贫富之间的差距在扩大。

From saving comes having
富有来自节约

authority是什么意思：
n. 权力；行政管理机构；当局；当权者；权威；权威人士；威信；许可；授权书

The authority is not reasonable.
这个判例并不合理。

A person in authority, with authority, speaks slowly.
一个有权威，使用权利的人，说话很慢。

Do you have the balls to challenge authority?
你有挑战权威的胆量么？