phenomenal
adj.adj. extremely impressive or surprising. You use this to describe something that is much better than usual.
adj. extraordinarily impressive or exceptional in quality; relating to a phenomenon or something perceptible by the senses. Often used as an intensifier to denote excellence.
The young pianist gave a phenomenal performance last night.
The company's phenomenal growth over the last decade surprised even the most optimistic investors.
While the scientific community initially doubted the findings, the phenomenal success of the clinical trials eventually silenced the critics and led to a global shift in treatment protocols.
From phenomenon + -al, after French phénoménal.
Typically used as a gradable adjective; frequently modified by intensifiers like 'truly' or 'absolutely'.