Benightment is a word used to describe a state of darkness and confusion, or a lack of knowledge and understanding. There are several synonyms that can be used in place of benightment, including ignorance, unawareness, bewilderment, perplexity, and obscurity. Each of these words conveys a similar meaning to benightment and can be used to describe a situation or a person who is lacking in knowledge or understanding. Synonyms for benightment can be useful when trying to convey a particular meaning or when trying to avoid repeating the same word too many times in a piece of writing.