JAMB - English Language (2001 - No. 10)
Choose the option nearest in meaning to the word underlined.
The professor discussed a number of abstruse topics.
esoteric
relevant
irrelevant
useful
Explication
"Abstruse" refers to something difficult to understand or obscure. "Esoteric" also refers to something understood by only a small, specialised group, making it the nearest in meaning.