con·sist·ent
/kənˈsistənt/
adjective: consistent
acting or done in the same way over time, especially so as to be fair or accurate.
- unchanging in nature, standard, or effect over time.
- compatible or in agreement with something.
- (of an argument or set of ideas) not containing any logical contradictions.
Origin
late 16th century (in the sense ‘consisting or composed of’): from Latin consistent- ‘standing firm or still, existing’, from the verb consistere