imperceptible /ˌɪmpɚˈsɛptəbəl/ adjective /ˌɪmpɚˈsɛptəbəl/
adjective
Learner's definition of IMPERCEPTIBLE
[more imperceptible; most imperceptible]
: impossible to see or notice无法觉察的；察觉不到的 -
imperceptible changes/differences无法觉察的变化/差异
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an almost imperceptible smile/breeze几乎觉察不到的微笑/微风
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These changes will be imperceptible to most people.大多数人将觉察不到这些变化。
— imperceptibly
/ˌɪmpɚˈsɛptəbli/ adverb