Efficacious is a related term of impressive.
As adjectives the difference between efficacious and impressive
is that efficacious is effective; possessing efficacy while impressive is making, or tending to make, an impression; having power to impress; adapted to excite attention and feeling, to touch the sensibilities, or affect the conscience; as, an impressive discourse; an impressive scene.
efficacious
English
Related terms
* effect
* effective
* effectivity
* effectual
* efficacity
* efficacy
* efficiency
* efficient
External links
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*
impressive
English
Adjective
(
en adjective)
Making, or tending to make, an impression; having power to impress; adapted to excite attention and feeling, to touch the sensibilities, or affect the conscience; as, an impressive discourse; an impressive scene.
Capable of being impressed.
appealing
Antonyms
* unimpressive
Derived terms
* impressiveness
Related terms
* impression
Anagrams
* permissive