Unknown icons

5 icons carry the tag unknown, across Interface, Data Engineering, Security and Social. Document question, Mail question, Null and 2 more — each in outline and duotone at three weights, with the code for React, Vue, Svelte, Flutter and more.

The 5 unknown icons, described

Document questiondocument-question: A document with a question mark on it — an unknown file, its type or contents not yet known.
Mail questionmail-question: An opened envelope with a question mark in its pocket — mail of unknown origin.
Nullnull-value: Null — the absence of a value, which is not zero and not empty text.
Shield questionshield-question: A shield with a question mark on it — protection unknown, a policy not yet decided.
Strangerstranger: The one you do not know.

In code, each is one import — import { DocumentQuestion } from "@iconmind/react/icons/document-question" — and the same name in Vue, Svelte, Solid, Preact, React Native, Astro, Blade and Flutter.

Tags these icons also carry

ask6 empty15 help8 query17 who4

Every unknown icon, free to ship

5 of 5,287 icons compiled from one grid — outline and duotone, three weights, every cell generated rather than redrawn. MIT licensed: commercial use, no attribution, no seat count.

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