unlettered vs ignorant

unlettered and ignorant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unlettered	No	Yes	No	No
ignorant	No	Yes	No	No

As adjectives, unlettered and ignorant are synonyms defined as:

unlettered and ignorant: uneducated in general; lacking knowledge or sophistication

Other synonyms of unlettered include nescient, unlearned.

unlettered (adjective)	ignorant (adjective)
having little acquaintance with writing	unaware because of a lack of relevant information or knowledge
uneducated in general; lacking knowledge or sophistication	uneducated in the fundamentals of a given art or branch of learning; lacking knowledge of a specific field
	uneducated in general; lacking knowledge or sophistication