The word "become embedded" refers to something that is firmly implanted or fixed in a material or substance. It implies a level of stability and permanence. Its antonyms, on the other hand, suggest a lack of stability or permanence. Words such as dislodged, removed, detached, and loosened all imply a sense of movement or change from a fixed position. Another set of antonyms could include words like ephemeral, fleeting, or transitory, which suggest something that is temporary or short-lived. These antonyms help to expand the understanding of the concept of becoming embedded by highlighting its opposite qualities.