1590s, from un- (2) "opposite of" + thaw (v.). Related: Unthawed; unthawing.

Nearby words

  1. untested,
  2. untether,
  3. untethered,
  4. unthankful,
  5. unthatch,
  6. unthink,
  7. unthinkable,
  8. unthinking,
  9. unthought,
  10. unthought-of

Online Etymology Dictionary, © 2010 Douglas Harper

Examples from the Web for unthaw

  • "I may as well be pleasant to him," reflected Nan, "for he may be my brother-in-law some day," and she began to unthaw a little.

    The Four Corners in Japan|Amy Ella Blanchard