adj.未充分发育的;未发展的;不发达的;尚未用于农业、工业、建筑业的;
例句:
The external capital market remains relatively undeveloped in Germany.
外部资本市场在德国主要是相对落后的.
The new continent was undeveloped.
新大陆尚未开发.
Meanwhile, their local markets are undeveloped and weak.
同时, 其国内市场未得到充分开发,较为疲弱.