Instrumental

usgb/ˌɪnstrəˈmentl/Volume
Left Definition 1 of 3Right
LampPro Tip 1/3
Agent of ChangePlay
Indicates someone or something is a major factor in causing or driving change. SlideHer research was instrumental in changing the laws.
LampPro Tip 2/3
Not the Sole FactorPlay
Usually means there are other contributing factors, although 'instrumental' points out a significant one. SlideHis advice was instrumental, but there were other factors in my decision.
LampPro Tip 3/3
No Physical ToolsPlay
Does not refer to physical tools, but to actions or things abstractly affecting outcomes. SlideNetworking was instrumental for her career advancement.