Standing still for something can be expressed in various ways in English language. Some of the synonyms for 'standing still for' are 'tolerating', 'accepting', 'putting up with', and 'enduring'. These synonyms possess similar meanings, but could be used in different contexts as per the desired tone and style of the sentence. For instance, one can say, 'I am standing still for my boss's caustic remarks' or 'I am enduring my boss's caustic remarks', and both would have the same meaning - accepting the boss's reproaches. Similarly, one can replace the phrase 'standing still for' with any of the suitable synonyms in a sentence, depending on the intended meaning.