insufficient
adjective/ˌɪnsəˈfɪʃənt/
Frequency rank: #5,556 most common English word
Meaning
not enough; lacking the necessary amount or quality.

Example sentence
The students failed the project because their research was insufficient.
Synonyms & related words
- inadequate
- lacking
- deficient
- poor
Practice this word in the quiz
More words in ranks 5,501–5,600
- herda large group of animals that live or move together.
- ideologicalRelating to a set of beliefs or ideas, especially political ones.
- immortalliving or lasting forever; never dying or ending.
- incumbentcurrently holding a specified office or position.
- insidera person who has special knowledge or access because they are part of a particular group or organization.
- intervalA period of time between two events; a break.
- jellya soft, sweet food made from fruit juice and sugar, often used as a spread.
- kidnappingthe act of taking someone away illegally by force, usually to demand a ransom.
- lickto pass the tongue over the surface of something
- literaltaking words in their exact or most basic sense, without metaphor or exaggeration.