Final answer:
Nouveau or nouvelle is the opposite of 'ancienne' in French. These adjectives change form depending on the gender and number of the noun they modify.
Step-by-step explanation:
The opposite of 'ancienne' in French is 'nouveau' or 'nouvelle' which means 'new'.
The term 'ancienne' translates to 'ancient' or 'old' and is often used to describe something that has existed for a long time. The adjective changes according to the gender and the number of the noun it stands for. For instance, for a feminine word, we use 'ancienne' and for a masculine word, we use 'ancien'. Now, when we talk about the exact opposite that describes something brand-new or recently made, we use 'nouveau' for masculine and 'nouvelle' for feminine words. For example, when talking about an old city, we say 'La ville ancienne', and for a new city we say 'La ville nouvelle'.
Remember that French adjectives agree in gender and number with the nouns they modify, which implies that they can have different forms depending upon the noun. The rules of French grammar are a critical part of language learning, and truly understanding them can help you make more sense of the language as a whole.
Learn more about Opposite of ancienne