- 1not large, strong, or important enough for a particular purpose synonym inadequate
- 2 insufficient time His salary is insufficient to meet his needs. opposite sufficient
- 3 The management paid insufficient attention to working conditions. There are fears that the existing flood barrier may prove insufficient.
adjectivejump to other results
NAmE//ˌɪnsəˈfɪʃnt//insufficient (to do something)insufficient (for something)
insufficientlyjump to other results
insufficiencyjump to other results
NAmE//ˌɪnsəˈfɪʃənsi//noun [uncountable, singular] (technology) cardiac insufficiency