noun, literary - things that exist only in your head, thoughts or fantasies

adjective, formal - able to be explained because it is logical

adjective - giving an explanation about something to make people understand it

noun - a person who has got doubts about something or does not believe something to be true

adverb - for an unknown length of time

adjective - lasting for an unknown length of time

adjective - thought to be the best of its type

adverb - in a way that cannot be changed or improved

adjective - cannot be changed or improved, final

verb - to make someone too proud of themselves

adjective - precisely stated

adverb - in a way that shows that you cannot decide quickly, confidently or effectively

adverb - in a way that shows that you can decide quickly, confidently and effectively

adjective - importantly influencing the final decision

noun - the ability to make decisions quickly and certainly