Curiosity is to explanation as sincerity is to:

-Encouragement
-Charisma
-Apology
-Investigation
-Trustworthiness

Sometimes I don't understand the meanings even when I search it up.

Is it trustworthiness? Or chrisma?

*Charisma

Hopefully curiosity leads to an explanation.

Hopefully sincerity leads to trustworthiness.

To determine the answer to this analogy question, it's important to understand the relationships between the given words. Curiosity and explanation are related because curiosity often leads to a desire for an explanation or understanding. Now, we need to find a pair of words that have a similar relationship to sincerity.

Let's take a look at each option:
- Encouragement: Although sincerity can be related to encouragement in certain contexts, it does not have the same cause-and-effect relationship as curiosity and explanation.
- Charisma: While charisma can often be associated with sincerity, it does not share the same relationship as the one between curiosity and explanation.
- Apology: An apology is an expression of remorse or regret for a wrongdoing, which is not directly related to sincerity.
- Investigation: This word implies a process of searching for information, which is similar to curiosity and explanation, but it doesn't directly relate to sincerity.
- Trustworthiness: Sincerity is closely connected to trustworthiness since being sincere means being genuine and honest.

Therefore, the correct answer to the analogy is Trustworthiness. Sincerity and trustworthiness share a relationship similar to that of curiosity and explanation. When someone is sincere, they are often seen as trustworthy because they are displaying honesty and genuineness.

If you still have trouble understanding the meaning of these words, I would recommend looking them up in a reliable dictionary or using a synonymous word finder. It's also helpful to read example sentences or contextualize the words in various scenarios to grasp their meanings more effectively.