efficacious vs efficient

efficacious and efficient both are adjectives.

Word	Noun	Adjective	Verb	Adverb
efficacious	No	Yes	No	No
efficient	No	Yes	No	No

efficacious (adjective)	efficient (adjective)
marked by qualities giving the power to produce an intended effect	being effective without wasting time or effort or expense
producing or capable of producing an intended result or having a striking effect	able to accomplish a purpose; functioning effectively