| Word | Definitions | Synonyms |
|---|---|---|
| austenitic | (adjective) composed of austenite | - |
| austere | (adjective) practicing great self-denial | Synonyms: ascetic, ascetical, spartan |
| (adjective) of a stern or strict bearing or demeanor; forbidding in aspect | Synonyms: stern | |
| (adjective) severely simple | Synonyms: severe, stark, stern | |
| austral | (adjective) of the south or coming from the south | - |
| australopithecine | (adjective) of or belonging to the hominid genus Australopithecus | - |