Conservative

1. Cautious, moderate.
2. Tending to resist change or innovation.
3. Based on pessimistic assumptions.
4. (US, economics, politics, social sciences) Supporting some combination of fiscal, political or social conservatism.
5. (Britain, politics) Relating to the Conservative Party.
6. (physics, not comparable) Neither creating nor destroying a given quantity.
7. Having power to preserve in a safe or entire state, or from loss, waste, or injury; preservative.
8. (Judaism) Relating to Conservative Judaism.
9. (clothing) Conventional, traditional, and moderate in style and appearance; not extreme, excessive, faddish, or intense.
10. (medicine) Not including any operation or intervention (said of a treatment, see conservative treatment)