The word "inadequate" is typically considered to be at a high school level vocabulary word. It is not commonly used in elementary or middle school texts and is more frequently encountered in academic or formal writing.
Sixth or seventh grade.
Yeast is an 8th grade vocabulary word. Yoga is an 8th grade vocabulary word.
It is difficult to find grade-level-specific vocabulary lists. The "Tampa Reads" site is on the first page of results of a Google search for "grade level vocabulary list standard." This site offers vocabulary lists for grades 1-5. The word "similar" appears on their list for grade 3.Of course different educators and organizations will differ about when it is appropriate to introduce a word into students' vocabularies and on what it means to be part of the "vocabulary:" should students merely recognize the word, use it actively, understand closely related words, or also appreciate its historical roots and etymology? In these senses "similar" could be a word on somebody's first grade list and on somebody else's high-school level list.You might get better insight by inquiring into the reading level of the context in which the word "similar" appears. A nice introduction to this topic is posted at http://www.hoagiesgifted.org/reading_levels.htm ("Reading Levels of Children's Books: How Can You Tell?").("Tampa Reads" appears to be a private, for-profit reading improvement program, not to be confused with any public or not-for-profit agency.)
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10th grade.
One word for clumsy manner is "awkwardness."
It depends on the type of test and what grade you are in. If you are in grade school, there are word games available online. If you are in high school, you might try using practice SAT questions from the vocabulary section of that test. These can be found online.
I would say 4th or 5th grade.
Yup
An antonym for the word "vocabulary" could be "silence" or "mute".
His grades were inadequate. The food provided inadequate nourishment. Money was inadequate to finance the venture.
what is vocabulary word of blending?