lack of knowledge

Since cerebral palsy has historically been classified as a pediatric condition, those with cerebral palsy find that there's a lack of knowledge about how to treat the factors that come with their condition as they age.

In a letter to Prime Minister Sir Keir Starmer, Conservative MP Shivani Raja said the decision was "not in keeping with the customs of many Hindus" and displayed a "disappointing lack of knowledge of the customs and traditions that many British citizens hold dear".

Examples of shaming included comments about "clothing and lack of knowledge or regional accents".

It would be dishonest of me to refrain from mentioning the other common conclusion which is widespread ignorance – meaning, a lack of knowledge, education or awareness.

Perhaps due to this breakneck speed and his lack of knowledge about the affected area, Steinbeck made serious mistakes and omissions that numerous scholars have thoroughly documented.