(adj): vs. late) -- (being or occurring at an early stage of development
(adj): little evolved from or characteristic of an earlier ancestral type
(adj): vs. late) -- (being or occurring at an early stage of development
(adj): used of preliterate or tribal or nonindustrial societies
(adj): vs. civilized), noncivilised -- (not having a high state of culture and social development
(adj): of or created by one without formal training; simple or naive in style
(adj): vs. trained) -- (not disciplined or conditioned or made adept by training
(n): a person who belongs to an early stage of civilization
(n): a human being
(n): a mathematical expression from which another expression is derived
(n): a group of symbols that make a mathematical statement
(n): a word serving as the basis for inflected or derived forms
(n): a unit of language that native speakers can identify
New Guinea was a primitive island.