lookahead

As nouns the difference between lookahead and future

is that lookahead is (computing) the analysis in advance of subsequent decisions that would be made if a particular branch of an algorithm was followed while future is the time ahead; those moments yet to be experienced.

As an adjective future is

having to do with or occurring in the future.

As nouns the difference between lookahead and forecast

is that lookahead is the analysis in advance of subsequent decisions that would be made if a particular branch of an algorithm was followed while forecast is an estimation of a future condition.

As a verb forecast is

to estimate how something will be in the future.

As a noun lookahead

is (computing) the analysis in advance of subsequent decisions that would be made if a particular branch of an algorithm was followed.

As an adjective nonlookahead is

not using, or not pertaining to, lookahead.