The antonyms for "un-glued" are "attached," "fixed," "steady," and "secure." These words convey a sense of stability, permanence, and safety, unlike "un-glued," which suggests something has come apart. "Attached" implies a strong and lasting connection, as in "The chair was attached to the floor." "Fixed" suggests that something has been firmly placed or fastened, as in "The picture frame was fixed to the wall." "Steady" means something that is not wavering or unstable, as in "Her voice remained steady despite the emotional topic." "Secure" suggests safety, protection, or the absence of danger, as in "The lock on the door ensured our home was secure.