Antonyms of adj unpredictable

3 senses of unpredictable

Sense 1
unpredictable (vs. predictable) -- (not capable of being foretold)

predictable (vs. unpredictable) -- (capable of being foretold)
        => foreseeable -- (capable of being anticipated; "foreseeable costs were well within the budget")
        => inevitable -- (invariably occurring or appearing; "the inevitable changes of the seasons")

Sense 2
unpredictable -- (unknown in advance; "an unpredictable (or indeterminable) future")

INDIRECT (VIA indeterminable) -> determinable -- (capable of being determined or limited or fixed; "determinable velocities"; "matters determinable by law")

Sense 3
irregular, unpredictable -- (not occurring at expected times)

INDIRECT (VIA sporadic) -> continual -- (occurring without interruption; chiefly restricted to what recurs regularly or frequently in a prolonged and closely spaced series; "the continual banging of the shutters")

Similarity of adj unpredictable

3 senses of unpredictable

Sense 1
unpredictable (vs. predictable) -- (not capable of being foretold)
       => aleatory -- (dependent on chance; "the aleatory element in life")
       => capricious, freakish -- (changeable; "a capricious summer breeze"; "freakish weather")
       => episodic, occasional -- (occurring or appearing at usually irregular intervals; "episodic in his affections"; "occasional headaches")
       => unforeseeable -- (incapable of being anticipated; "unforeseeable consequences")
          Also See-> uncertain#4

Sense 2
unpredictable -- (unknown in advance; "an unpredictable (or indeterminable) future")
       => indeterminable (vs. determinable), undeterminable -- (not capable of being definitely decided or ascertained)

Sense 3
irregular, unpredictable -- (not occurring at expected times)
       => sporadic (vs. continual) -- (recurring in scattered and irregular or unpredictable instances; "a city subjected to sporadic bombing raids")