plateau
n. countable B2 Upper Intermediate US //pɫæˈtoʊ// UK //plˈætəʊ// plateau
n. a period of time when there is no more progress or change after a time of growth. You might feel stuck on a plateau if your skills stop improving for a while.
n. a state of little or no change following a period of activity or progress. Often describes a leveling off in statistical data or personal skill acquisition.
My weight loss reached a plateau after three months.
After six months of rapid improvement, her tennis game hit a plateau where she struggled to learn new techniques.
Economists worry that the current industrial plateau suggests a structural limit to growth that cannot be overcome without significant technological innovation or policy reform.
Usage
Often used with the verbs 'reach' or 'hit'.