imperceptibly C2 Topic:Describing Qualities US /ˌɪmpɝˈsɛptɪbli/ See IPA manual Freq #66823 Meanings 1 adv In a way too small or gradual to be noticed. The room grew imperceptibly darker as the afternoon wore on. Thesaurus Synonyms 1 adv · in a way too small or... unnoticeably Etymology AI details From imperceptible + -ly. *keh₂p- Proto-Indo-European View etymology graph -> Topics Describing Qualities Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # imperceptibly **Type:** Word **Level:** C2 **Part of speech:** adv **IPA (US):** /ˌɪmpɝˈsɛptɪbli/ **Frequency rank:** 66823 ## Meanings 1. In a way too small or gradual to be noticed. ## Examples - The room grew imperceptibly darker as the afternoon wore on. ## Roots and Affixes - Root: *keh₂p- ## Etymology From imperceptible + -ly. ## AI Etymology Imperceptibly is formed from imperceptible + -ly. The analysis is mainly morphological: the modern adverbial form is built from the named base and affix. Important recorded forms include *keh₂p- (Proto-Indo-European). Current senses include in a way too small or gradual to be noticed. ## Topics - Describing Qualities - Word Formation & Derivatives markdown