Dicey/ˈdaɪsi/ Definition 1 of 2Pro Tip 1/3Evaluating Risk Use 'dicey' to discuss situations where the outcome is uncertain and could involve danger or loss. The stock market's looking dicey this week. Pro Tip 2/3Emotional Weight 'Dicey' may convey a sense of nervousness or anxiety about a situation or decision. Choosing a path in the dicey fog made us anxious. Pro Tip 3/3Informal Tone While common in everyday conversation, 'dicey' is informal and might not suit formal writing. Describing the business deal as 'dicey' was too casual.