1. causing dizziness or a spinning sensation
2. extremely high or steep
3. changing rapidly and unpredictably

Examples

• The vertiginous heights of the skyscraper made her feel dizzy.
• He experienced a vertiginous sensation when he looked down from the cliff.
• The stock market’s vertiginous rise surprised all the analysts.
• The vertiginous drop in temperature caught everyone off guard.
• Standing at the edge of the canyon gave him a vertiginous feeling.
• The vertiginous pace of technological change is hard to keep up with.
• She avoided the vertiginous spiral staircase in the old tower.