All-encompassing, ample, across the board, and all-embracing are all synonyms for extensive. Small and limited are these antonyms of extensive. And here are another 42 synonyms for extensive.
Extensive Synonyms
1. large
- Ample
- Boundless
- Broad
- Capacious
- Commodious
- Considerable
- Expansive
- Great
- Huge
- Immeasurable
- Immense
- Large-scale
- Large
- Roomy
- Sizeable
- Spacious
- Substantial
- Vast
- Voluminous
- Sweeping
2. comprehensive
- Across the board
- All-embracing
- All-encompassing
- All-inclusive
- Boundless
- Broad
- Catholic
- Complete
- Comprehensive
- Cross-disciplinary
- Exhaustive
- Interdisciplinary
- Profound
- Sweeping
- Thorough
- Universal
- Vast
- Wholesale
- Wide-ranging
- Wide
- Multidisciplinary