Not far off/out/wrong Definition 1 of 3Pro Tip 1/3Estimation Precision Used when you're close in guesses or estimates, but not exactly spot-on. The weather forecast was not far off - it did rain a bit. Pro Tip 2/3Valued Impreciseness Shows that being precisely accurate isn't always necessary to communicate an idea. I'm not far off your age, just a couple of years younger. Pro Tip 3/3Humbly Near Truth Express modesty about your reply's correctness when unsure. I think it's in the 20s today, not far off, right?