If referring to a solution:
* Dilute: This is the most common and direct synonym for "less concentrated."
* Weak: This can be used to describe a solution with a lower concentration of solute.
* Hypotonic: This term is specifically used in the context of comparing two solutions, where the solution with a lower solute concentration is hypotonic relative to the other.
If referring to a population:
* Sparse: This describes a population with a lower density of individuals.
* Scattered: This indicates individuals are spread out, with lower concentration in a given area.
If referring to a process:
* Slowed: This could describe a biological process that is occurring at a lower rate due to a lower concentration of reactants or enzymes.
* Reduced: This is a general term that can be used to describe a decrease in the concentration of something.
Other possibilities:
* Decreased: This is a general term that can be used to describe a decrease in concentration.
* Lower: This is a simple and direct synonym for "less concentrated."
Example:
* Instead of saying "The solution is less concentrated," you could say "The solution is dilute."
* Instead of saying "The population is less concentrated," you could say "The population is sparse."
To give you the most accurate synonym, please provide more context about what you are referring to.