Choose the most appropriate option opposite in meaning to the word underlined word(s).He devoted too much time to the peripheral aspects?

Choose the most appropriate option opposite in meaning to the word underlined word(s).He devoted too much time to the peripheral aspects?

Answer Details

The opposite of "peripheral" is "main". In this context, "peripheral aspects" means the less important or less essential parts of something, so "main" would be the opposite as it refers to the most important or central parts.