If you are planning to wear a see-through dress, wear something underneath.
so thin as to transmit light; "a hat with a diaphanous veil"; "filmy wings of a moth"; "gauzy clouds of dandelion down"; "gossamer cobwebs"; "sheer silk stockings"; "transparent chiffon"; "vaporous silks"
See-through clothes are made of thin cloth, so that you can see a person's body or underwear through them. = transparent. a see-through material or surface allows you to see through it