A lump or chunk, especially of earth or clay.
A person or an agency secretly in the service of another.
A stupid person; a dolt.
A person regarded as stupid.
(Physics) A very-low-frequency electromagnetic wave of 1 to 30 kilohertz produced by atmospheric disturbances such as lightning and having a characteristically decreasing frequency responsible for a whistling sound in detection equipment.
Find another word for thickhead. In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for thickhead, like: blockhead, chump, clod, dolt, dullard, dummkopf, dummy, dunce, numskull, dimwit and dumbbell.