efficacious
effective; producing the intended result
Roots
- -acious: trait-marking adjective ending
- e- / ex-: out, out of, away, or forth
- fac / fic / fact: do or make
Other words with the fac / fic / fact root
- affectation: an artificial display meant to impress
- artificial: made by humans; not natural
- benefactor: person who gives help, money, or support
- beneficent: doing good or producing benefit
- beneficial: helpful or producing good effects
- certify: to confirm officially as true
- effect: a result or outcome
Efficacious things make the result happen.
The new review method was simple but surprisingly efficacious.
The word is practical: not impressive-looking but actually able to work.