1. not welcoming to guests or visitors; unfriendly
2. having harsh conditions that make it difficult to live in or visit

Examples

• The hotel staff was surprisingly inhospitable to the tourists.
• She gave him an inhospitable look when he arrived uninvited.
• The desert’s inhospitable climate makes survival extremely difficult.
• Antarctica is one of the most inhospitable places on Earth.
• The rocky terrain was inhospitable to most forms of plant life.
• His inhospitable manner made guests feel uncomfortable.
• The mountain’s inhospitable weather conditions forced climbers to turn back.