ithand /ˈaɪðənd/ adjective4 •(Scotland, no longer used) Industrious; assiduous; continually busy; diligent. •(Scotland, no longer used) Plodding; constant; continual. •(Scotland, no longer used) Continuous; persistent. •(Scotland, no longer used) Conscientious; considerate; watchful; careful; attentive. formsmore ithand · most ithand