spartan
 US /ˈspɑːr.tən/
 UK /ˈspɑːr.tən/

1. 
relating to Sparta in ancient Greece, characterized by austerity, discipline, and indifference to comfort or luxury
:
• 
The ancient Spartan warriors were known for their rigorous training.
• 
Life in the barracks was Spartan, with minimal comforts.
1. 
a native or inhabitant of Sparta
:
• 
The ancient city-state of Sparta was home to many brave Spartans.
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As a true Spartan, he endured the harsh conditions without complaint.