Another word for "very different" is "disparate". This term is often used to describe things that are fundamentally distinct or dissimilar in nature. For example, you might say, "The two cultures have disparate traditions and values," to emphasize how different they are from each other.

Other synonyms for "very different" include:

1. Divergent: This suggests a movement or development in different directions, often leading to significant differences. For example, "Their opinions on the matter were divergent, leading to a heated debate."

2. Distinct: This implies a clear and unmistakable difference. For example, "The two species are distinct in their behavior and habitat."

3. Dissimilar: This is a straightforward way to say that two things are not alike. For example, "The twins have dissimilar personalities despite their identical appearances."

4. Polar: This term is often used to describe extreme differences, as in "polar opposites." For example, "Their political views are polar, making it difficult for them to find common ground."

5. Contrasting: This suggests a comparison that highlights differences. For example, "The artist used contrasting colors to create a striking effect."

6. Heterogeneous: This term is often used in scientific or technical contexts to describe a mixture of different elements. For example, "The population of the city is heterogeneous, with people from various cultural backgrounds."

7. Incongruous: This suggests a lack of harmony or compatibility. For example, "The modern architecture seemed incongruous in the historic district."

8. Unrelated: This implies that there is no connection or similarity between the things being compared. For example, "The two incidents were unrelated, despite occurring on the same day."

9. Diverse: This term is often used to describe a variety of different elements within a group. For example, "The team is diverse, with members from different countries and professional backgrounds."

10. Opposite: This is a straightforward way to describe things that are completely different from each other. For example, "Their personalities are opposite; one is outgoing while the other is introverted."

Each of these words can be used to convey the idea of being "very different," but they may carry slightly different connotations depending on the context in which they are used. For example, "disparate" might be more appropriate in a formal or academic context, while "opposite" might be more commonly used in everyday conversation.

In summary, when you want to describe something as "very different," you have a variety of words to choose from, each with its own nuance. Whether you're writing an essay, giving a presentation, or just having a conversation, selecting the right synonym can help you convey your meaning more precisely and effectively.