different between propitious vs efficacious

English

Etymology

From Anglo-Norman and Old French propicius, from Latin propitius (“favorable, well-disposed, kind”). Compare French propice, Portuguese propício and Spanish propicio.

Pronunciation

• IPA^(key): /p?o??p???s/
• Hyphenation: pro?pi?tious

Adjective

propitious (comparative more propitious, superlative most propitious)

1. Favorable; benevolent.

   Synonym: favorable

   Antonym: unpropitious

2. Advantageous.

   Synonym: advantageous

3. Characteristic of a good omen.

   Synonyms: auspicious, fortunate, promising
4. (archaic) Favorably disposed towards someone.

Antonyms

• unpropitious

Translations

Related terms

• propitiate
• propitiation
• propitiously
• propitiousness

Further reading

• propitious in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• propitious in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• propitious at OneLook Dictionary Search

English

Etymology

From Old French efficacieux, from Latin effic?x (“efficacious”) +? -ous, from efficere (“to effect, to accomplish”); see effect.

Pronunciation

• IPA^(key): /?f.?.?ke?.??s/

  Rhymes: -e???s

Adjective

efficacious (comparative more efficacious, superlative most efficacious)

1. (formal) Effective; possessing efficacy. [from 1520s]

   Synonym: effective

   Antonym: inefficacious

Related terms

Translations

Further reading

• efficacious in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• efficacious in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• “efficacious”, in Lexico, Dictionary.com; Oxford University Press, 2019–present.