Antonyms of adj unmistakable

2 senses of unmistakable

Sense 1
unmistakable -- (clearly evident to the mind; "his opposition to slavery was unmistakable")

INDIRECT (VIA clear) -> unclear -- (not clear to the mind; "the law itself was unclear on that point"; "the reason for their actions is unclear to this day")

Sense 2
apparent, evident, manifest, patent, plain, unmistakable -- (clearly revealed to the mind or the senses or judgment; "the effects of the drought are apparent to anyone who sees the parched fields"; "evident hostility"; "manifest disapproval"; "patent advantages"; "made his meaning plain"; "it is plain that he is no reactionary"; "in plain view")

INDIRECT (VIA obvious) -> unobvious -- (not immediately apparent; "in mathematical science connections are exhibited which...are extremely unobvious"- A.N.Whitehead)

Similarity of adj unmistakable

2 senses of unmistakable

Sense 1
unmistakable -- (clearly evident to the mind; "his opposition to slavery was unmistakable")
       => clear (vs. unclear) -- (readily apparent to the mind; "a clear and present danger"; "a clear explanation"; "a clear case of murder"; "a clear indication that she was angry"; "gave us a clear idea of human nature")

Sense 2
apparent, evident, manifest, patent, plain, unmistakable -- (clearly revealed to the mind or the senses or judgment; "the effects of the drought are apparent to anyone who sees the parched fields"; "evident hostility"; "manifest disapproval"; "patent advantages"; "made his meaning plain"; "it is plain that he is no reactionary"; "in plain view")
       => obvious (vs. unobvious) -- (easily perceived by the senses or grasped by the mind; "obvious errors")