Consistent (adjective)

1. Remaining the same throughout.
2. Regular or uniform in occurrence or action.
3. Compatible with or able to be reconciled with other facts or values.

Origin:

Late 16th century (in the sense "constant in action or effect"): from latin consistent- "standing together", from the verb consistere, from con- "together" + sistere "stand".

Examples:

1. The company's profits have been consistent over the last few years.
2. Her performance was consistent with her usual high standards.
3. The evidence is consistent with the theory.
4. His behavior was not consistent with the expectations of the company.
5. The team's performance was not consistent throughout the season.