Antonyms of adj answerable

2 senses of answerable

Sense 1
answerable -- (capable of being answered)

INDIRECT (VIA soluble) -> insoluble -- (admitting of no solution or explanation; "an insoluble doubt")

Sense 2
answerable -- (morally or legally responsible to a higher authority; "parents are answerable for their child's acts")

INDIRECT (VIA responsible) -> irresponsible -- (showing lack of care for consequences; "behaved like an irresponsible idiot"; "hasty and irresponsible action")

Similarity of adj answerable

2 senses of answerable

Sense 1
answerable -- (capable of being answered)
       => soluble (vs. insoluble) -- (susceptible of solution or of being solved or explained; "the puzzle is soluble")

Sense 2
answerable -- (morally or legally responsible to a higher authority; "parents are answerable for their child's acts")
       => responsible (vs. irresponsible) -- (worthy of or requiring responsibility or trust; or held accountable; "a responsible adult"; "responsible journalism"; "a responsible position"; "the captain is responsible for the ship's safety"; "the cabinet is responsible to the parliament")