How to translate "detangling knot" or "knot that unties"? I need to use the expression "detangling knot" (knot that unties). It's for a poem and I should write it with two kanji and no more... is it possible or is it better for me to use something like this 開結 (should be "untied/open knot")?
活结
Pleco Basic Chinese-English Dictionary

knot that can be undone by a pull; slipknot (opp. 死结)
系了个活结
xì le ge huójié
make a slipknot


活扣
ABC

slipknot; knot that can be easily untied