Antonyms for the word "line angle" can include "curve," "rounding," and "bend." These words imply a departure from the straightness and sharpness often associated with a line angle. Other antonyms could include "circular," "spherical," or "orbicular," which suggest shapes that are completely round or curved. Alternatively, antonyms for "line" could include "blur," "smudge," or "fuzzy," which imply a lack of clear definition. Similarly, antonyms for "angle" could include "curved," "rounded," or "smooth," suggesting a lack of sharpness or corners. Overall, antonyms for "line angle" describe shapes that are less defined and structured than a sharp, straight line with a defined angle.