We don't have synonyms for fees tails yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are fees tail and fee tail.
(n) :
(law) An estate in land in common law in which the land is inherited, but cannot be sold, devised by will, or otherwise alienated by the owner, but which passes by operation of law to the owner's heirs upon his death.
(n) :
(law) An estate in land in common law in which the land is inherited, but cannot be sold, devised by will, or otherwise alienated by the owner, but which passes by operation of law to the owner's heirs upon his death.