What does unserious mean?
Unserious describes a person, remark, manner, or approach that lacks seriousness, solemnity, or earnest purpose. It commonly implies that someone is treating a matter lightly, playfully, or without due concern. For example, an unserious answer may signal that the speaker is joking or avoiding a serious question, while an unserious attitude suggests a lack of responsibility or appropriate gravity. The word is used in both formal discussion and everyday conversation, although its application to conduct or commitments can carry a distinctly critical or dismissive tone. Unlike the stronger term frivolous, which can imply pointless indulgence or an irresponsible disregard for consequences, unserious primarily focuses on the absence of a serious manner or intent. It is therefore especially useful when the issue is whether a person or statement is meant to carry weight, rather than whether an activity has lasting value or importance.
adjectiveNot serious in manner, purpose, or intent; treating a matter lightly or without solemnity.
- Not serious or solemn in manner or bearing.
- Not earnest or purposeful in intent; intended lightly or without genuine concern.
"Her unserious reply made it clear that she did not expect the proposal to be taken seriously."
"He maintained an unserious expression even while discussing the serious consequences."
"The politician's unserious remark was widely criticized as evasive."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unserious come from?
Unserious was formed in English in the early 17th century by adding the negative prefix un- to serious. Serious itself had entered English from Latin serius, meaning earnest, grave, or important, with development through French usage. The forms unseriously and unseriousness later continued the same productive un- pattern, while serious, seriously, and seriousness remain the closest established relatives in the serious word family.
Related word forms
How unserious is actually used
The word is neutral to mildly informal in general use, but it can sound dismissive when used to characterize someone's attitude, qualifications, or treatment of an important issue. It is often used attributively or predicatively.