Antonyms of adj suggestible

1 sense of suggestible

Sense 1
suggestible -- (susceptible or responsive to suggestion; "suggestible young minds")

INDIRECT (VIA susceptible) -> unsusceptible, insusceptible -- (not susceptible to)

Similarity of adj suggestible

1 sense of suggestible

Sense 1
suggestible -- (susceptible or responsive to suggestion; "suggestible young minds")
       => susceptible (vs. unsusceptible) -- ((often followed by `of' or `to') yielding readily to or capable of; "susceptible to colds"; "susceptible of proof")