1. not put into use or practice; not utilized or employed
2. lacking physical exercise or activity

Examples

• The unexercised stock options expired worthless.
• His unexercised authority in the matter surprised everyone.
• The unexercised muscles had grown weak from disuse.
• She felt sluggish after months of unexercised living.
• The contract contained several unexercised clauses.
• His unexercised right to vote was a missed opportunity.