NOUN:	SOLECISM; bad -, false -, faulty- grammar; grammatical blunder; faux pas [F.], error, slip; slip of the pen, lapsus calami [L.]; slip of the tongue, lapsus linguœ [L.]; slipslop; bull, Hibernianism; barbarism, impropriety.
VERB:	SOLECIZE or solecise, commit a solecism; use -bad, - faulty- grammar; murder the King’s (or Queen’s) English; speak -, write- out of the idiom; break Priscian’s head.
ADJECTIVE:	UNGRAMMATICAL; incorrect, inaccurate, faulty; improper, incongruous; solecistic or solecistical; slipslop.