1. not pleasing to look at; not beautiful or appealing in appearance
2. not interesting, appealing, or desirable

Examples

• The old building was unattractive and needed renovation.
• She felt unattractive in the unflattering dress.
• The job offer was unattractive due to the low salary.
• The gray, cloudy weather made the landscape look unattractive.
• His rude behavior made him unattractive to potential friends.
• The restaurant’s unattractive exterior didn’t reflect the quality of its food.
• The investment seemed unattractive given the high risks involved.