Standard Lemma guide

Einsteiny

adj · 3 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: /ˈaɪnstaɪni/
  • Received-Pronunciation: /-ʃtaɪ-/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ˈaɪnˌstaɪni/

1

adj

Meaning 1

Characteristic of or resembling Albert Einstein, or his theory of relativity; Einsteinian.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: non-Einsteinian, un-Einsteinian

2

adj

Meaning 2

Characteristic of or resembling Albert Einstein, or his theory of relativity; Einsteinian.

Highly intelligent; brilliant.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: non-Einsteinian, un-Einsteinian

3

adj

Meaning 3

Characteristic of or resembling Albert Einstein, or his theory of relativity; Einsteinian.

Of hair, sticking out wildly.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: non-Einsteinian, un-Einsteinian

History

Etymology

[Alt: Portrait of Albert Einstein] From Einstein + -y (suffix forming adjectives with the sense ‘having the quality of’), referring to the German-born theoretical physicist Albert Einstein (1879–1955).

Across languages

Translations

1 source translations are retained for this English entry.

  • Finnish: harottava — of hair: sticking out wildly