ideal ideal /aɪˈdiːl/

adjective

1. () Conforming to an ultimate standard of perfection or excellence; embodying an ideal  ( ideal )
   conforming to an ultimate standard of perfection or excellence; embodying an ideal
     The beach vacation was an ideal way to relax and unwind.
   The beach vacation was an ideal way to relax and unwind.
   
2. () Constituting or existing only in the form of an idea or mental image or conception  ( ideal )
   constituting or existing only in the form of an idea or mental image or conception
    A poem or essay may be typical of its period in idea or ideal content
   a poem or essay may be typical of its period in idea or ideal content
   
3. Of or relating to the philosophical doctrine of the reality of ideas  ( ideal , idealistic )
   of or relating to the philosophical doctrine of the reality of ideas
   

noun

1. () The idea of something that is perfect; something that one hopes to attain  ( ideal )
   the idea of something that is perfect; something that one hopes to attain
   
2. () Model of excellence or perfection of a kind; one having no equal  ( apotheosis , nonesuch [Archaic] , nonpareil , ideal , nonsuch [Archaic] , paragon , saint )
   model of excellence or perfection of a kind; one having no equal