This is the 4495th most frequent French word.
irréaliste
Unrealistic.
The word 'irréaliste' is used to describe an idea or concept that is not feasible or practical.
Ton idée pour le projet semble irréaliste.
Your idea for the project seems unrealistic.
Here, 'irréaliste' characterizes a goal that cannot be achieved realistically due to limitations or constraints such as resources.
Cet objectif est irréaliste compte tenu des ressources disponibles.
This goal is unrealistic given the available resources.
In this case, 'irréaliste' refers to someone's expectations that are not grounded in the reality of the market situation.