Standard Lemma guide

effectivity

noun · 4 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.

  • General-American: /əˈfek.tɪv.ə.t̬i/
  • General-American: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The ability or power to be effective.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A measure of the effectiveness of something.

Definition source: English Wiktionary via Wiktextract

Usage: countable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

[Technical documentation] An indication of the product, procedure, or timescale for which an item of information is applicable or effective.

Definition source: English Wiktionary via Wiktextract

Usage: countable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

power to be effective; the quality of being able to bring about an effect

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: effectiveness, effectualness, effectuality

Antonyms: none provided

Broader terms: power, powerfulness

Narrower terms: incisiveness, trenchancy, efficacy, efficaciousness

History

Etymology

Etymology tree Proto-Indo-European *h1éǵh Proto-Indo-European *-s Proto-Indo-European *h1éǵhs Proto-Italic *eks Latin ex Latin ef- Proto-Indo-European *dheh1- Proto-Indo-European *dheh1k- Proto-Indo-European *-yéti Proto-Indo-European *dhh1kyéti Proto-Italic *θakjō Proto-Italic *fakjō Latin faciō Latin efficiō Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Latin effectīvusbor. French effectifder. English effective Proto-Indo-European *-teh2 Proto-Indo-European *-ts Proto-Indo-European *-teh2ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English effectivity From effective + -ity.

Across languages

Translations

20 source translations are retained for this English entry.

  • Czech: účinnost — the ability or power to be effective
  • Czech: efektivita — the ability or power to be effective
  • Finnish: vaikuttavuus — the ability or power to be effective
  • German: Effektivität — the ability or power to be effective
  • Polish: skuteczność — the ability or power to be effective
  • Polish: efektywność — the ability or power to be effective
  • Portuguese: efetividade — the ability or power to be effective
  • Romanian: efectivitate — the ability or power to be effective
  • Russian: эффекти́вность (effektívnostʹ) — the ability or power to be effective
  • Swedish: effektivitet — the ability or power to be effective
  • Turkish: etkinlik — the ability or power to be effective
  • Turkish: müessiriyet — the ability or power to be effective
  • Czech: účinnost — a measure of the effectiveness of something
  • Czech: efektivita — a measure of the effectiveness of something
  • Finnish: vaikuttavuus — a measure of the effectiveness of something
  • Finnish: teho — a measure of the effectiveness of something
  • Polish: efektywność — a measure of the effectiveness of something
  • Polish: skuteczność — a measure of the effectiveness of something
  • Portuguese: efetividade — a measure of the effectiveness of something
  • Russian: эффекти́вность (effektívnostʹ) — a measure of the effectiveness of something