ineffectual
adjective/ˌɪnɪˈfɛktʃuəl/
Frequency rank: #15,295 of 20,003 in the WORDED list (wordfreq data)
Meaning
Not producing the desired effect; lacking the ability to achieve results.

Example sentence
Despite hours of practice, his performance remained ineffectual and failed to impress the judges.
Synonyms & related words
More words in ranks 15,201–15,300
- idealistA person who believes in or pursues high or noble principles, sometimes ignoring practical realities.
- indecisiveUnable to make decisions quickly or firmly.
- indefensibleimpossible to justify or defend; inexcusable.
- indivisibleunable to be divided or separated into parts
- industrialistA person who owns or manages a large industrial enterprise.
- inextricablyin a way that is impossible to separate or untangle
- ingestto take food, drink, or another substance into the body by swallowing or absorbing it.
- innermostLocated or occurring deepest within; most private or secret.
- insolubleUnable to be dissolved in a liquid; also, impossible to solve or explain.
- insulateto cover or protect something with a material that prevents heat, electricity, or sound from passing through