| A | B |
| museum piece | a person or thing regarded as old-fashioned, irrelevant, or no longer useful |
| cutting-edge | the leading position in any field |
| innovative | introducing new ideas original and creative in thinking |
| obsolete | no longer produced or used out of date |
| outdated | no longer used or considered modern |
| redundant | not or no longer needed or useful |
| retro | imitative of a style or fashion from the recent past |
| superseded | ake the place of a person or thing previously in authority or use |
| rhetorical | (of a question) asked in order to produce an effect or to make a statement rather than to elicit information |
| impact | the action of one object coming forcibly into contact with another |
| advance | move forward in a purposeful way |
| insight | the capacity to gain an accurate and deep understanding of someone or something |
| embed | fix (an object) firmly and deeply in a surrounding mass |
| epidemic | a widespread occurrence of an infectious disease in a community at a particular time |
| prominent | important or famous |