English Cambridge Unit 1

affordable not expensive

conclude to judge or decide something after thinking carefully about it

conversely in an opposite way

evolve to develop gradually, or to cause something or someone to develop gradually

gestures a movement of the hands, arms or head, etc. to express an idea or feeling

imaginative new, original and clever

impersonal without human warmth; not friendly and without features that make people feel interested or involved

impractical not effective or reasonable, or (of people) not able to provide effective or simple solutions

insensitive not feeling or showing sympathy for other people's feelings, or refusing to give importance to something

insight a clear, deep and sometimes sudden understanding of a complicated problem or situation

inspection the act of looking at something carefully

interaction an occasion when two or more people or things communicate with or react to each other

invaluable extremely useful

it's safe to say used to say that you are confident about what you are going to say

needless to say as you would expect; added to or used to introduce a remark giving information that is expected and not surprising

obsolete not in use any more, having been replaced by something newer and better or more fashionable

open-minded willing to consider ideas and opinions that are new or different to your own

outgoing friendly and energetic and finding it easy and enjoyable to be with others

overwhelming difficult to fight against

persuasive making you want to do or believe a particular thing

scholar a person who studies a subject in great detail, especially at a university

self-conscious nervous or uncomfortable because you are worried about what people think about you or your actions

sincere not pretending or lying; honest

state-of-the-art very modern and using the most recent ideas and methods

that is to say or more exactly

time-consuming something that takes a lot of time to do

to say the least used to show that what you are describing is in fact much more serious or important than you have suggested

undergo to experience something that is unpleasant or something that involves a change

universally in a way that exists everywhere, or involves everyone

usage the way something is treated or used

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