Compare undeveloped with other words:
embryous vs. undeveloped
underdeveloped vs. undeveloped
fallow vs. undeveloped
social vs. undeveloped
behind vs. undeveloped
economic vs. undeveloped
lagging vs. undeveloped
undeveloped vs. used
developed vs. undeveloped
rudiment vs. undeveloped
rural vs. undeveloped
bush vs. undeveloped
backward vs. undeveloped
matter vs. undeveloped
undeveloped vs. young
aborted vs. undeveloped
ability vs. undeveloped