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Sententious is not a kind word. We use it when someone talks as if they have the right to tell other people how to live — often in short, tidy sayings that sound wise, even when the moment did not ask for a lesson. A sententious person is not just serious; they are . They offer morals the way some people offer weather: whether you wanted them or not. You meet this word in books, reviews, and rather formal talk, not in the playground. Though actually, the is the point: if you liked the advice, you would probably just call it honest, or wise. Older writing could use sententious more calmly, for speech full of maxims and opinions; today it almost always means “too pleased with their own little truths.” It describes a manner, not a grammar term, even though it sits next to the word sentence in the family tree.
愛說教的、好講大道理的（帶貶義；近乎「好為人師」）
組成From Latin sententiōsus, from sententia, “an opinion, a purpose, a saying.” The English ending is the usual “full of” shape.
同家族的字
- sentenceboth go back to Latin sententia, an opinion or a saying
- sententiouslythe adverb: in that preachy way
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
sententiousadj/sɛnˈtɛn.ʃəs/
- 1
Using as few words as possible; pithy and concise.
- 2
Tending to the frequent use aphorisms or maxims; especially, in a manner that is affected, trite or self-righteous.
- His sententious remarks quickly bored the audience.
- 3
obsoleteFull of meaning.
- More ouer, towarde the acquiringe of maiestie, thre thinges be required in the o∣ration of a man hauyng autoritie, that it be compendious, sententious, and delectable
- 4
obsoleteRelating to a sentence; sentential.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。