1. not favorable; not likely to lead to success
Usage: formal

Examples

• The storm clouds made it an unpropitious day for the outdoor wedding.
• Starting a new business during a recession seems unpropitious.
• The team’s recent losses created an unpropitious atmosphere for contract negotiations.
• Despite the unpropitious beginning, the project eventually succeeded.
• The unpropitious timing of the announcement hurt the company’s stock price.
• Weather conditions were unpropitious for the sailing competition.