(1):
(a.) Existing in idea or thought; conceptional; intellectual; mental; as, ideal knowledge.
(2):
(n.) A mental conception regarded as a standard of perfection; a model of excellence, beauty, etc.
(3):
(a.) Imaginary.
(4):
(a.) Teaching the doctrine of idealism; as, the ideal theory or philosophy.
(5):
(a.) Existing in fancy or imagination only; visionary; unreal.
(6):
(a.) Reaching an imaginary standard of excellence; fit for a model; faultless; as, ideal beauty.