1.
not having official authority or sanction
a sort of unofficial mayor
an unofficial estimate
he participated in an unofficial capacity
2.
not officially established
the early election returns are unofficial
The following are synonyms for 'unofficial'. Click on any of them to get both Bibliodata's full list of common definitions and a further set of synonyms.
In the spring of 1975, a baby in Detroit fell 14 stories and landed on Joseph Figlock, who was walking below. A few years later it happened again. Figlock and both babies survived.