If I did so, how long before it grew back?
Define “back”?
Noticeable, or back to whatever length it was when you shaved it off?
I keep mine cut short, maybe 1/4" or so. I got a bad cut on my right eyebrow and they shaved some to put in stitches. It was pretty much back in 30 days or so.
Ever notice how some men need to shave twice a day to look “clean” and others three times a week?
I shaved mine for an Halloween disguise. Came back noticeably in 10 days and full in 8 days more.
Need answer fast?
I usually wear my hair in a very short buzz cut but sometimes shave it all off. When I shave it I do it in the shower using a small mirror that sticks to the shower wall. Once, I got in too much of a hurry and was doing it more by feel than using the mirror. I managed to accidently shave off the end of an eyebrow while shaving the part of my scalp closest to said eyebrow. After getting out of the shower I examined the damage in the big bathroom mirror with better light and shaved a little off the other side to make them look even. That didn’t look right so I shaved them both all the way off. Made a huge difference in my appearance because I tend to have big bushy eyebrows.
I would say they grew back enough to look like my normal self in about a week and back to bushy in about 3 weeks…
Just to delve a little farther in to my brow history, at one time I had a little patch of hair that grew right between my brows. Not a unibrow, just a little “island” of hair that I was a bit self conscious about. I shaved it a for a while and then bought a waxing kit at the drug store and waxed that patch a couple times. That killed it off and 20 or so years later it hasn’t grown back. On the other hand, I have one single hair that grows on the tip of my nose that I’ve plucked with tweezers for years that’s still going, although it’s much diminished from it’s heyday.
Did you lose a bet?
I have never shaved my eyebrows. But I did reach an age where I started having crazy mad scientist eyebrows. The first time my barber asked me if I wanted my eyebrows trimmed, it was one of those, geez I am getting old moments.
My impression is eyebrows grow back fairly quickly. I get mine trimmed with every haircut. The barber doesn’t even ask anymore. sigh.