Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Obviate(verb) to meet in the way. 2  Obviate(verb) to anticipate; to prevent by interception; to remove from the way or path; to make unnecessary; as, to obviate the necessity of going.
Elected in 1960 as the 35th president of the United States, 43-year-old John F. Kennedy became the youngest man and the first Roman Catholic to hold that office.
On November 22, 1963, 46-year-old President John Kennedy was assassinated in Dallas, Texas. Robert Kennedy stayed on as attorney general under President Johnson until September 1964, when he resigned to embark on a campaign to represent New York in the U.S. Senate.