[Answer] 5. Synonyms: peak, tipAntonyms: bottom, nadir

Step 1 : Introduction to the question "5. Synonyms: peak, tip Antonyms: bottom, nadir"

...1. aplite 2. apex 3. appose 4. apropos Apex means "the highest point; peak; vertex". It is a noun. It comes from the Latin word apere, meaning "to fasten".

[Answer] 4. Synonyms: average, ordinaryAntonyms: exceptional, outstanding

Step 1 : Introduction to the question "4. Synonyms: average, ordinary Antonyms: exceptional, outstanding"

...1. militant 2. mediocre 3. muddle 4. meddle Mediocre means "neither very good nor very bad". It is an adjective. It comes from the Latin word mediocris.