180度 (ひゃくはちじゅうど) Japanese meaning | KotomoraThis road curves at 180 degrees.
Please preheat the oven to 180 degrees.
Usage patterns
〈事〉が180度変わるfor something to change completely
His attitude did a complete 180-degree turn.
〈人〉の意見が180度転換するfor someone's opinion to completely reverse
Her opinion made a complete 180-degree reversal.
〈事〉を180度変えるto completely change something
The company completely reversed its policy.
対
正反対 means 'exact opposite' in a neutral, descriptive way, while 180度 frames the change as a sudden, dramatic turnaround.