1. present participle of preconcert; to arrange or plan beforehand in secret or with others
Usage: formal; often used in passive voice or with 'with'

1. arranged or planned in advance; coordinated beforehand
Usage: formal; often used attributively

Examples

• The delegates were preconcerting their strategy before the conference began.
• It was a preconcerting effort between the two organizations to improve community services.
• The musicians had been preconcerting their performance for weeks.
• The preconcerting of the event ensured everything ran smoothly.
• They were accused of preconcerting with foreign governments.
• The preconcerting arrangement allowed all parties to prepare adequately.