Synonyms:
lineal, direct
Meaning: in a straight unbroken line of descent from parent to child; "lineal ancestors"; "lineal heirs"; "a direct descendant of the king"; "direct heredity"
Usage examples
His ambition was only to be distinguished as William Osbaldistone, the first, at least one of the first, merchants on Change; and to have proved him the lineal representative of William the Conqueror would have far less flattered his vanity than the hum and bustle which his approach was wont to produce among the bulls, bears, and brokers of Stock-alley.