1. difficult or impossible to reach or access physically
2. unfriendly or unwilling to talk to or interact with others; aloof

Examples

• The mountain peak remained inapproachable due to severe weather conditions.
• The CEO's inapproachable demeanor made employees hesitant to share their concerns.
• The island was inapproachable except by boat during the storm season.
• Her cold, inapproachable manner discouraged people from asking for help.
• The fortress was built on an inapproachable cliff overlooking the valley.
• Despite his success, he maintained an inapproachable attitude toward fans.