1. able to be challenged, disputed, or argued against
2. open to legal challenge or objection
Usage: legal

Examples

• The referee's decision was contestable, and the coach filed a formal complaint.
• Some of the study's findings are contestable and require further research.
• The will was contestable because it lacked proper witness signatures.
• His claim to the property is contestable under current law.
• The data presented in the report is contestable by independent experts.
• Whether that interpretation is correct remains contestable among scholars.