1. existing only in imagination; illusory or unrealistic

Examples

• His plan to become a millionaire overnight was completely chimerical.
• The scientist dismissed the theory as chimerical and lacking evidence.
• She pursued chimerical dreams of fame without any concrete steps.
• The proposal seemed chimerical given the limited budget.
• Many considered his vision of world peace to be chimerical.
• The chimerical nature of the project became apparent after further study.