This is the 945th most frequent Japanese word.
イイ
"イイ" means "good" or "fine."
Here, 'イイ' (ii) means 'good' or 'nice' and is used to express a positive evaluation of the movie.
この映画は本当にイイね。
This movie is really good, isn't it?
Here, 'イイ' (ii) conveys an affirmative or approving sentiment toward someone's idea or suggestion.
あなたの提案はイイと思います。
I think your suggestion is good.
In this sentence, 'イイ' (ii) describes favorable or pleasant conditions for weather.