impractical
adjective
[ ɪmˈpraktɪk(ə)l ]
• not adapted for use or action; not sensible or realistic.
• "impractical high heels"
• impossible to do; impracticable.
Similar:
unrealistic,
unworkable,
unfeasible,
non-viable,
impracticable,
ill-considered,
ill-thought-out,
illogical,
unreasonable,
far-fetched,
impossible,
silly,
foolish,
absurd,
wild,
cock-eyed,
crackpot,
crazy,
half-baked,
