unclench

un·clench

U0037200 (ŭn-klĕnch′)v. un·clenched, un·clench·ing, un·clench·es v.tr. To loosen from a clenched position; relax: unclench one's fists.v.intr. To become unclenched.

unclench

(ʌnˈklɛntʃ) vb (tr) to open (clenched teeth, a clenched fist, etc)
Translations
ξεσφίγγω