hardhead(redirected from Aythya australis)
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Related to Aythya australis: hard heads
1. A shrewd, tough person.
2. A stubborn, unmovable person.
3. pl. hardhead or hard·heads Any of several fishes having a bony head, especially the Atlantic croaker.
someone tough, realistic, or shrewd, and not moved by sentimentsomeone stubborn or obstinate
1. a shrewd, practical person.
2. a blockhead.