impractical
Definitions
Not adapted for use or action; not sensible or realistic.
Difficult to do, carry out, or maintain in a practical way.
Examples
It is impractical to try and walk across the entire country in just one week.
The architect's design was beautiful, but ultimately impractical for a family with small children.
Synonyms
unrealistic unfeasible idealistic visionary quixotic impracticable unworkable
Antonyms
practical realistic feasible pragmatic sensible workable functional