(Of a person) not easily influenced.
More example sentences
- Anyway, Moore can be said to have attracted the attention of young, impressionable readers - and probably old, unimpressionable ones as well, as his works sell, literally, by the million.
- All unimpressionable youths with enough life experience to be able to distinguish image and reality?
- They too would disappear one day to leave behind an unimpressionable clean sheet bookmarked in time by a few dry and crumpled old flowers.