Synonyms for Transmissible (same or very similar meaning)
WordNet sense 1 (tending to occur among members of a family usually by heredity):
familial, genetic, hereditary, inherited, transmitted
WordNet sense 2 (inherited or inheritable by established rules (usually legal rules) of descent):
ancestral, patrimonial
WordNet sense 3 (that can be inherited):
heritable, inheritable
WordNet sense 4 ((of disease) capable of being transmitted by infection):
catching, communicable, contagious, transmittable, contractable
WordNet sense 5 (easily spread):
infectious
From the ODE community, based on WordNet
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