Guesstimate and Not actually

Guesstimate verb - To make an approximate or tentative judgment regarding.

Not actually and guesstimate are semantically related in for all practical purposes topic. In some cases you can use "Not actually" instead an adverb "Guesstimate".

Guesstimate and not actually are semantically related in for all practical purposes topic. You can use "Guesstimate" instead an adverb phrase "Not actually".