efficient

As an adjective efficient

is efficient.

As a noun refarming is

(us|telecommunications) the abolition of existing band allocations in the radio spectrum and the more efficient reallocation of the spectrum into smaller bands.

As adjectives the difference between efficient and nonefficient

is that efficient is making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy while nonefficient is not efficient.

As an adjective efficient

is efficient.

As a noun metaheuristic is

an experimental heuristic method for solving a general class of computational problems by combining user procedures in the hope of obtaining a more efficient or robust procedure.

As an adjective efficient

is making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy.

As a noun optimizer is

a person in a large business whose task is to maximize profits and make the business more efficient.

As adjectives the difference between efficient and hyperefficient

is that efficient is making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy while hyperefficient is extremely efficient.

As adjectives the difference between efficient and ultraefficient

is that efficient is efficient while ultraefficient is extremely efficient; of utmost efficiency.

As adjectives the difference between efficient and superefficient

is that efficient is efficient while superefficient is very efficient.