1. (

• impractical

) not practical; not workable or not given to practical matters; "refloating the ship proved impractical because of the expense"; "he is intelligent but too impractical for commercial work"; "an impractical solution" ;

2. (

• airy ,
• impractical ,
• visionary ,
• Laputan ,
• windy

) not practical or realizable; speculative; "airy theories about socioeconomic improvement"; "visionary schemes for getting rich" ;