1. in a position where no progress can be made; deadlocked

1. past tense of stalemate; brought to a standstill or deadlock

Examples

• The peace negotiations were completely stalemated after months of talks.
• Both armies found themselves stalemated along the front lines.
• The budget discussions have been stalemated for weeks.
• The chess match ended when both players were stalemated.
• Political disagreements stalemated the legislative process.
• The labor dispute stalemated production at the factory.
• Contract negotiations remained stalemated despite mediation efforts.