Antonyms of adj communicable

2 senses of communicable

Sense 1
catching, communicable, contagious, contractable, transmissible, transmittable -- ((of disease) capable of being transmitted by infection)

INDIRECT (VIA infectious) -> noninfectious -- (not infectious)

Sense 2
communicable -- (readily communicated; "communicable ideas")

INDIRECT (VIA communicative) -> uncommunicative, incommunicative -- (not inclined to talk or give information or express opinions)

Similarity of adj communicable

2 senses of communicable

Sense 1
catching, communicable, contagious, contractable, transmissible, transmittable -- ((of disease) capable of being transmitted by infection)
       => infectious (vs. noninfectious) -- (easily spread; "fear is exceedingly infectious; children catch it from their elders"- Bertrand Russell)

Sense 2
communicable -- (readily communicated; "communicable ideas")
       => communicative (vs. uncommunicative), communicatory -- (able or tending to communicate; "was a communicative person and quickly told all she knew"- W.M.Thackeray)