verb (used with object), in·ferred, in·fer·ring. 1. to derive by reasoning; conclude or judge from premises or evidence: They inferred his displeasure from his cool tone of voice. 2. (of facts, circumstances, statements, etc.) to indicate or involve as a conclusion; lead to. 3. to guess; speculate; surmise. 4. to hint; imply; suggest. verb (used without object), in·ferred, in·fer·ring. 5. to draw a conclusion, as by reasoning.