1. in a way that is extremely disliked or despised; abominably

Examples

• The villain behaved detestably toward the innocent villagers.
• She spoke detestably of her former colleagues, showing no respect.
• The food was detestably overcooked and inedible.
• He treated his employees detestably, creating a toxic workplace.
• The weather was detestably cold and miserable that winter.
• The performance was detestably bad, disappointing the entire audience.