insapient
/ˌɪnsəˈpiːnt/; /ˈɪnsəpɪənt/Definitions
1. adjective
Lacking or deprived of wisdom, sense, or discernment.
“The king, often seen as insapient in his decisions, brought about a great economic downturn.”
2. adjective
Devoid of knowledge or understanding.
“The tourists appeared insapient, unaware of the local customs and traditions.”