Informally

Informally is an adverb describing actions or communications performed in an informal manner—without official formality, ritual, or rigid structure. The adjective informal is formed from formal with the negative prefix in- and comes from the Latin formal, via formalis, meaning related to form or structure. Informally, therefore, indicates a casual, everyday mode of expression or conduct.

In language use, informality contrasts with formality and signals register, audience, and purpose. Informal speech or writing often features contractions (such as can't or it's), slang, colloquial expressions, direct address, and shorter sentences. It aims for ease of understanding and a sense of familiarity, but at times can invite ambiguity or appear disrespectful in sensitive or professional contexts. The level of informality is influenced by cultural norms, social relationships, and institutional guidelines.

Common contexts include conversations among friends, casual messages, informal notes, brainstorming sessions, and some creative writing that favors a natural voice. In formal settings—such as academic papers, legal documents, or official correspondence—formal language is typically required, emphasizing precision, conventional structure, and neutral tone. Many organizations balance a friendly, approachable tone with professional standards, permitting informality in internal communications while maintaining decorum in external or customer-facing materials.

Related concepts include formality, register, and colloquialism. Understanding informality involves recognizing audience expectations, cultural norms, and the purpose of communication, as these factors determine when a more casual style is appropriate or inappropriate.