Some weaknesses of the Japanese language
Considered a “fuzzy” language. The Japanese people don’t like to be blunt or rude. Consequently, they hesitate to express opinions in a strong and clear manner. Politicians like to use this to their advantage!
Very few words of affection or endearment as in all European languages! Most Japanese either cannot or will not say “I love you” to their loved ones. These words do exist in Japanese, but are not part of daily vocabulary.
No such thing as rhyming poetry!
It takes about twice as long to say something as compared to English. English song lyrics have to be cut in half when translated into Japanese in order to keep the same rhythm.