WordNet sense 1 (of or relating to or characteristic of the planet Earth or its inhabitants):

terrestrial

WordNet sense 2 (of or relating to or resembling the physical or orbital characteristics of a planet or the planets):

planetal

WordNet sense 3 (having no fixed course):

erratic, wandering

WordNet sense 4 (not settled or established):

unsettled

WordNet sense 5 (involving the entire earth; not limited or provincial in scope):

global, world, worldwide

WordNet sense 6 (concerning or belonging to all or at least two or more nations):

international