Antonyms of adj niminy-piminy

1 sense of niminy-piminy

Sense 1
dainty, mincing, niminy-piminy, prim, twee -- (affectedly dainty or refined)

INDIRECT (VIA refined) -> unrefined -- ((used of persons and their behavior) not refined; uncouth; "how can a refined girl be drawn to such an unrefined man?")

Similarity of adj niminy-piminy

1 sense of niminy-piminy

Sense 1
dainty, mincing, niminy-piminy, prim, twee -- (affectedly dainty or refined)
       => refined (vs. unrefined) -- ((used of persons and their behavior) cultivated and genteel; "she was delicate and refined and unused to hardship"; "refined people with refined taste")