The question asks for the word closest in meaning to 'rudimentary'. The sentence is: "Early humans may have had a rudimentary understanding of certain mathematical concepts."
'Rudimentary' means representing a basic or undeveloped stage; elementary or primitive.
In the context of the sentence, early humans likely possessed a basic level of understanding mathematical concepts. Comparing the options:
Therefore, 'elementary' is the nearest synonym for 'rudimentary' in this sentence.
Each item in this section consists of a word in capital letters followed by four words or groups of words. Select the word or groups of words that is most similar in meaning to the word in capital letters.
AMBIGUOUS
Each item in this section consists of a word in capital letters followed by four words or groups of words. Select the word or groups of words that is most similar in meaning to the word in capital letters.
ELUCIDATE
Each item in this section consists of a word in capital letters followed by four words or groups of words. Select the word or groups of words that is most similar in meaning to the word in capital letters.
MONOTONOUS
Each item in this section consists of a word in capital letters followed by four words or groups of words. Select the word or groups of words that is most similar in meaning to the word in capital letters.
KINDLE
Each item in this section consists of a word in capital letters followed by four words or groups of words. Select the word or groups of words that is most similar in meaning to the word in capital letters.
PALATIAL