Across
- 3. advanced and original.
- 4. having great power or strength.
- 6. able to be used for a practical purpose or in several ways.
- 7. something that's developed with a high degree of complexity.
- 9. not expensive.
Down
- 1. head in development or progress.
- 2. very helpful or important.
- 5. consistently good in quality or performance able to be trusted.
- 8. made up of complicated and interrelated parts.