Impressionable (adjective)

1. Easily influenced or swayed by others' opinions or ideas.
2. Easily influenced by external factors or experiences.
3. Susceptible to making lasting impressions.

Origin:

From late latin impressibilis, from in- 'into' + pressus 'pressed'.

Examples:

1. As a child, she was considered impressionable and easily influenced.
2. The young artist was impressionable and quickly developed his own style.
3. The audience was impressionable, and the speaker's words made a lasting impact.
4. The material was impressionable and easily shaped into the desired form.
5. The mind was impressionable, and the memories formed would last a lifetime.