malleable

easily shaped or influenced

Roots

-able / -ible: able to be, fit to be, or worthy of
malle / mallet: hammer, shaping, or being beaten into form

Other words with the malle / mallet root

mallet: a hammer with a large head

Mallet gives the hammer image. Malleable material can be shaped under pressure.

A malleable argument changes shape when better evidence appears.

Think of malleable as material that does not fight the hammer. The word works physically and mentally: soft metal is malleable, but so is a person whose opinions can be shaped too easily.