As adjectives the difference between propitious and efficacious
is that propitious is favorable; benevolent (eg propitious weather ) while efficacious is effective; possessing efficacy.
propitious
English
Adjective
(
en adjective)
Favorable; benevolent (e.g. propitious weather )
(archaic) Favorably disposed towards someone.
.
Characteristic of a good omen: auspicious.
Synonyms
* advantageous, auspicious, favorable, fortunate, promising
Antonyms
* unpropitious
Related terms
* propitiate
* propitiation
* propitiously
* propitiousness
External links
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efficacious
English
Related terms
* effect
* effective
* effectivity
* effectual
* efficacity
* efficacy
* efficiency
* efficient
External links
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