Antonyms of adj frilled

1 sense of frilled

Sense 1
frilled, frilly, ruffled -- (having decorative ruffles or frills)

INDIRECT (VIA adorned) -> unadorned, undecorated -- (not decorated with something to increase its beauty or distinction)

Similarity of adj frilled

1 sense of frilled

Sense 1
frilled, frilly, ruffled -- (having decorative ruffles or frills)
       => adorned (vs. unadorned), decorated -- (provided with something intended to increase its beauty or distinction)