not typical or usual 非典型的；反常的 atypical behaviour 反常行为
Extra ExamplesIn some ways, the sample we studied for our research was atypical. 在某些方面，我们为研究而研究的样本是非典型的。 The so-called ‘norm’ of the nuclear family is in fact atypical of many families. 所谓的核心家庭的“常态”事实上在许多家庭里并不存在。 We shouldn't concentrate too much on atypical spending patterns—they won't tell us much. 我们不应该过多地关注非典型的支出方式，它们不会告诉我们太多。