Indissoluble (adjective)

1. Not able to be dissolved or not able to be broken down.
2. Not able to be separated or not able to be dissolved.

Origin:

This word is derived from the latin word "indissolubilis" which is formed by the combination of the prefix "in-" meaning "not" and the word "dissolubilis" meaning "able to be dissolved" or "able to be broken down".

Examples:

1. The bond between the two brothers was indissoluble.
2. The marriage was considered indissoluble and could not be legally dissolved.
3. The company's partnership was indissoluble and the partners were committed to each other.
4. The friendship was indissoluble and nothing could break it.
5. The union between the two countries was indissoluble and they were united forever.