Answer:
6). Synonyms
9). Neither
10). Synonyms
17). Antonyms.
19). Antonyms.
Explanation:
6). Both the words 'contemporary' and 'modern' correspond to a similar meaning and i.e. 'of the modern or present age'.
9). The word dormant means 'inactive' while dominant refers to 'ruling or prevailing'. Thus, they exemplify neither synonyms nor antonyms.
10). Alienate and Estrange, both demonstrate the similar characteristic and i.e. 'withdrawn or estranged in affection'. Thus, they are synonymous.
17). Denotative and connotative stand opposite to each other in meaning where the former refers to the 'literal meaning' while the latter illustrates the 'implied meaning'. Thus, they are antonyms.
19). The words 'resistant' and 'yielding' are contrary to each other as they propose contrasting meanings. Resistant is 'a person or thing who offers opposition' while 'yielding' means 'inclined to give away in favor'. Thus, they are antonyms.