noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
Received-Pronunciation:/ˈsaɪ.ə.lɪ.z(ə)m/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:/ˈsaɪ.əˌlɪ.z(ə)m/
1
noun
Meaning 1
The practice of expressing opinions on something which one knows only superficially or has little real understanding of; also, shallow or superficial knowledge; (countable) an instance of this.
Definition source: English Wiktionary via Wiktextract
Usage: dated, derogatory, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
pretentious superficiality of knowledge
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: superficiality, shallowness
History
Etymology
From Late Latin sciolus (“sciolist”) + English -ism (suffix forming the names of tendencies of action, behaviour, condition, opinion, or state belonging to classes or groups of persons), based on sciolist. Sciolus is a diminutive of Latin scius (“cognizant, knowing”) + -olus (variant of -ulus (suffix forming diminutives)); while scius is either from sciō (“to be able to; to have practical knowledge, know (how to do something); to understand”) (ultimately from Proto-Indo-European *skey- (“to dissect; to split”)), or is a back-formation from nescius (“ignorant, unaware; unknowing”) (from nesciō (“to be ignorant, not know, not understand; to be unable”), from ne- (prefix meaning ‘not’) + sciō).
Across languages
Translations
3 source translations are retained for this English entry.
Greek:
ημιμάθεια
(imimátheia)
— practice of expressing opinions on something which one knows only superficially or has little real understanding of; shallow or superficial knowledge; an instance of this
Mon:
ပညာသိပ္ပံ
— practice of expressing opinions on something which one knows only superficially or has little real understanding of; shallow or superficial knowledge; an instance of this
Russian:
верхоглядство
(verxogljadstvo)
— practice of expressing opinions on something which one knows only superficially or has little real understanding of; shallow or superficial knowledge; an instance of this