Antonyms for the phrase "holds tight" could include "releases," "lets go," or "unclenches." If something is not being held tight, it could also be described as "loose," "slippery," or "unsteady." The opposite of holding tight could also imply a lack of control or grip, such as "losing grip" or "losing hold." Alternatives to physically holding tight could include "releasing control" or "allowing to move freely." Overall, the antonyms for "holds tight" suggest a lack of tightness, restraint, or control, either by choice or unintentionally.