Incompatible Posted on 1st December 20153rd October 2020 by ThePD (The Project Definition) Incompatible means not able to coexist or cowork in nature as to be incapable each other. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Technology and tagged word. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.