If the hair follicle is not damaged, pulled hair will grow back. The follicle can be damaged if trauma was involved or if the hair was pulled consistently over a period of time.
The average person's hair grows about 1/2 an inch per month. The only way to know if the hair will grow back is to wait and look for new growth.
Tweezing can damage the follicle, as can yanking or forcibly pulling the hair. People who have the condition trichotillomania sometimes experience permanent hair loss because they regularly pull their hair out, often for years. This condition afflicts 2 to 4 percent of all Americans.