untighten

词形变化

untightened untightening untightens 三单 untightens untightening 现在分词 untightened 过去式 untightened 过去分词

释义与例句

v.
  1. 1.

    To loosen; to make something less tight.

    及物

词源

From un- + tighten.

来源：wiktionary