1. impossible to achieve or complete

Examples

• The deadline seemed unaccomplishable given our limited resources.
• She realized her childhood dream of becoming a professional athlete was unaccomplishable due to her injury.
• The project’s ambitious goals proved unaccomplishable within the given timeframe.
• Many considered the task unaccomplishable until new technology made it feasible.
• The mountain rescue appeared unaccomplishable in such severe weather conditions.
• His perfectionist standards made the assignment feel unaccomplishable to his team.