The phrase "a combination of ignorance" is correct and usable in written English.
It can be used to describe a situation or opinion that arises from a lack of knowledge or understanding.
Example: "The decision was made based on a combination of ignorance and misinformation, leading to unintended consequences."
Alternatives: "a mix of unawareness" or "a blend of naivety".
All that stands in the way of saving the planet is a combination of ignorance, prejudice and vested interests.
This thinking is fuelled by a combination of ignorance, fear, hatred, Christian and Islamic-based homophobic religious beliefs, and perversely racial pride.
But his return Thursday was met by a combination of ignorance and cynicism by the handful of bettors who braved the wet weather.
With their idiom — a combination of ignorance and extravagance that emulates the badinage of big business — the lowlifes become a satire on the spiritual attrition of capitalism.
Pulling it off, he added, had required "a combination of ignorance and arrogance, which in equal measure are good for this kind of operation".
A combination of ignorance and fear, shame and hopelessness may have prevented their seeking either an abortion or support from their parents as the weeks went by.
The consequence is that most government policy in the field of technology is a combination of blissful ignorance and wishful thinking.
The English had had a mission there since 1797, but through a "combination of arrogance, ignorance and xenophobia", says Mr Philbrick, the Nantucketers wouldn't risk landing.
Experts in the field of horse rescues say it is a combination of economics, ignorance and pride that is causing an increase in the number of rescues each year.
She argues that a combination of American ignorance and arrogance, an unwillingness to confront Pakistan, and a need to divert American troops and resources to Iraq caused the United States to implement a disastrous policy in Afghanistan.
Later, they attend a party at which Princess Margaret, the vain and toxic guest of honor, tells stories "about 'the ordinary people in this country' in whom she had 'enormous faith' based on a combination of complete ignorance about their lives and complete confidence in their royalist sympathies".
