The word "has signs of" is typically used as a vague description of something that may be present, but without certainty. Antonyms of this phrase would include "certain," "absent," or "not evident." Instead of saying that something "has signs of" a particular condition, one could state definitively whether or not that condition is present. For example, instead of saying a person has "signs of" illness, one could say they are "ill," "healthy," or "not displaying any symptoms." Shifting towards more accurate language can promote clarity, helping to avoid misunderstandings and confusion.