Antonyms of adv undependably

1 sense of undependably

Sense 1
unfaithfully, undependably, unreliably -- (in an unfaithful undependable unreliable manner)
       Antonym of dependably (Sense 1)
      => faithfully, dependably, reliably -- (in a faithful manner; "it always came on, faithfully, like the radio")

Synonyms of adv undependably

1 sense of undependably

Sense 1
unfaithfully, undependably, unreliably -- (in an unfaithful undependable unreliable manner)