The word "frees of" doesn't technically have antonyms, as it's a phrase rather than a standalone word. However, if we look at the individual words within it, we could suggest antonyms. "Frees" means to release, liberate or unshackle, so antonyms could include words that mean to restrict or confine such as bind, constrain, or imprison. "Of" is a preposition indicating possession or association, so antonyms could include words like without, devoid, or separated. Combining both, antonyms to "frees of" could include binds without, constrains devoid, or imprisons separated.