For taste:
* 甘い (amai): This is the most common word for "sweet" and refers to a literal sweet taste.
* 甘ったるい (ama-ttaru-i): This word implies a cloying sweetness, often used for something overly sweet or sugary.
For personality/character:
* 優しい (yasashii): This means "kind" or "gentle," often associated with sweetness in a person's character.
* 可愛い (kawaii): This means "cute" or "adorable" and can also be used to describe someone who is sweet or innocent.
* 愛らしい (airashii): Similar to "kawaii," this word conveys a sense of loveableness and tenderness.
For other uses:
* 甘い (amai): This can also mean "easy," "lax," or "indulgent" in a figurative sense, such as "a sweet deal."
* 甘やかす (amayakasu): This means "to spoil" or "to indulge" someone.
The specific meaning of "sweet" will depend on the context and the nuances of the Japanese language.