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Aberrant means not usual, not the normal pattern — off to the side of what you expect. It is a formal, often scientific or medical word, not a word for a slightly odd hat. Doctors and researchers talk about aberrant cells, aberrant behaviour, an aberrant result: something that does not follow the rule for that kind of thing. It can sound cold, even harsh, if you use it about a person in everyday talk; “strange” or “unusual” is kinder and more ordinary. The feeling is “this has wandered off the path,” not merely “I don’t like it.”
異常的、偏離常軌的（偏書面、學術；口語較常說 unusual）
組成From Latin aberrāns, the “-ing” form of aberrō, “go astray, wander off,” from ab (“from, away”) + errō (“to wander”).
同家族的字
- aberrationthe noun: the odd event or departure itself
- errsame Latin errō, “wander”; to err is to go wrong
- errorsame root: a wandering from what is right or true
原始詞典資料5 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。
aberrantadj/əˈbɛɹ.ənt/
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Differing from the norm.
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Straying from the right way; deviating from morality or truth.
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biologybotanynatural-sciencesDeviating from the ordinary or natural type; exceptional; abnormal.
- The more aberrant any form is, the greater must have been the number of connecting forms which, on my theory, have been exterminated.
aberrantnoun/əˈbɛɹ.ənt/
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A person or object that deviates from the rest of a group.
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biologynatural-sciencesA group, individual, or structure that deviates from the usual or natural type, especially with an atypical chromosome number.
- Also I think other birders realise you are struggling a bit when you start talking about aberrants[.]
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。