1) that which has not only the name and resemblance, but the real nature corresponding to the name, in every respect corresponding to the idea signified by the name, real, true genuine

a) opposite to what is fictitious, counterfeit, imaginary, simulated or pretended

b) it contrasts realities with their semblances

c) opposite to what is imperfect defective, frail, uncertain

2) true, veracious, sincere