One Word Substitutes

1.Extreme old age when a man behaves like a fool

Imbecility Senility Dotage Superannuation

2.That which cannot be corrected

Unintelligible Indelible Illegible Incorrigible

3.The study of ancient societies

Anthropology Archaeology History Ethnology

4.A person of good understanding knowledge and reasoning power

Expert Intellectual Snob Literate

5.A person who insists on something

Disciplinarian Stickler Instantaneous Boaster