having control and influence over people and events

the world's most powerful nation

powerful financial interests threatened to create a monopoly in land ownership

she was once one of the most powerful women in American business

having or producing great force or energy

a fast, powerful car

computers are now more compact and powerful

biotechnology is an extremely powerful tool

having a strong effect on people's feelings or thoughts

his determination sends a powerful message to the drug industry

they present a powerful argument to the contrary

the photomontages are powerful anti-war images

very

walking is powerful hot work