This is the 5577th most frequent Japanese word.
くさく
"くさく" means "smelly" or "stinky" in English.
In this sentence, 'くさく' refers to an unpleasant odor, describing the fish's condition.
この魚はくさくて食べられない。
This fish is smelly and cannot be eaten.
Here, 'くさく' metaphorically implies speaking in a blunt or tough manner, showing a figurative use.
くさく言っても彼は聞かない。
Even if I speak harshly, he doesn't listen.
In this context, 'くさく' conveys a sense of aroma, associating with the pleasant scent of spring.