There are numerous synonyms for the phrase "something wrong." For instance, some of the synonyms include, "off-base," "imperfect," "defective," "faulty," "irregular," "awry," "erroneous," "incorrect," "invalid," "mistaken," "improper," "unsound," "flawed," "inaccurate," and "fallacious." All these words can be used to express that something is not operating as it should and requires fixing or adjusting. These words can be used in various contexts, ranging from simple daily interactions to intricate technical terminology. It is essential to select the right synonym depending on the intended meaning and context to avoid any confusion or misinterpretation.