This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Of such fine texture as to be transparent or translucent: diaphanous tulle.

adj. Characterized by delicacy of form. See Synonyms at airy.

adj. Vague or insubstantial: diaphanous dreams of glory.

adj. Transparent; allowing light to pass through; capable of being seen through.

adj. Of a fine, almost transparent texture, e.g. gossamer.

adj. Allowing light to pass through, as porcelain; translucent or transparent; pellucid; clear.

Transmitting light; permitting the passage of light; transparent; clear; translucent.

adj. so thin as to transmit light

"He introduces two female dancers, Silvina Cortés and Olga Cobos, who dip and skim in diaphanous shifts, and although crafted with typical Maliphant precision, this new material is inconsequential and ultimately soporific."

thin   

pellucid    clear    insubstantial    delicate   

filmy    gauzy    fleecy    sleeveless    rose-colored    iridescent    translucent    woolen    ankle-length    frilly