Antonyms of adj 5-membered

1 sense of 5-membered

Sense 1
five-membered, 5-membered -- (of a chemical compound having a ring with five members)

INDIRECT (VIA membered) -> memberless -- (of a group or set having no members)

Similarity of adj 5-membered

1 sense of 5-membered

Sense 1
five-membered, 5-membered -- (of a chemical compound having a ring with five members)
       => membered (vs. memberless) -- (having members; normally used in chemistry in combination with a number)