The phrase "impressive lecture" is correct and usable in written English.
It can be used to describe a lecture or presentation that leaves a strong impact on the audience, either because of the content or the delivery. Example: The professor delivered an impressive lecture on the history of Ancient Egypt, captivating the attention of all the students in the room.
The last day of the conference was dedicated to new materials and methods for cultural heritage, and was opened by an impressive plenary lecture of Prof. Antonio Candeias (University of Evora and HERCULES Laboratories, Portugal) who raised awareness of the potential of biotechnology to investigate cultural heritage objects.
His style of lecturing was impressive: lucid and informative, often impassioned, always enlightening, a reasoned statement of a highly radical analysis.
In 1648 Bourdon was one of the founders of the French Royal Academy, in which he became professor and rector and led an impressive series of public lectures on current issues in art.
It also hosts an impressive schedule of workshops, lectures and events – people often remark upon C/O's warm atmosphere – even though it's a sprawling gallery, with more than 2,000sq metres of space.
It's an impressive collection of fascinating lectures.
In fact I've got a friend who last year managed to average one lecture per term: impressive by anyone's standards.
That 50-minute lecture, Gerrard says, was "the most impressive pedagogic performance I've ever seen".
This blurring of boundaries would take place in a highly-impressive haze of interactive lectures populated by Google Glass-clad lawyers-to-be, who, thanks to an impossibly sophisticated flexible learning regime, would also easily hold down full-time jobs and active social lives.
A few pages later, one boy begins to lecture a group of quarrelling playmates: "He said impressive things about friendship, quoting from his book the story of the dying old man and the faggots, which proved that union was strength".
The viral success of his lecture, though, has little to do with Lustig's impressive credentials and far more with the persuasive case he makes that sugar is a "toxin" or a "poison," terms he uses together 13 times through the course of the lecture, in addition to the five references to sugar as merely "evil".
