Novial is a constructed language that was designed in the 1920s as a potential international auxiliary language. Novial has a regular grammar and is meant to be easy to learn for speakers of various languages. Some defining features of Novial include:

Simplified grammar: Novial has a simplified grammar that is intended to be easy for speakers of various languages to learn.

Simple morphology: Novial has a simple morphology with consistent affixes and no gender for nouns except those denoting persons . Additionally, noun plurals are formed by adding -s to the singular form of the word.

Regular word classes: Novial has regular word classes, with all adjectives ending in -i, all adverbs ending in -e, and all verbs in the present tense ending in -a.

Familiar vocabulary: Novial's vocabulary is designed to be familiar to speakers of various languages, drawing from Latin and Germanic roots, as well as including some international words.

Neutral culture: Novial was intentionally designed to have a neutral culture, with no specific culture or nation associated with it.

Overall, Novial was designed to be an easily-learned and widely-useful international auxiliary language. Its regular grammar, simple morphology, regular word classes, and familiar vocabulary make it an accessible option for speakers of various languages. Its neutral culture also makes it an acceptable choice for a wide range of settings.
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