1.

a sudden impulse, idea, etc.

a fit of mental confusion or excitement.

brainstorming.

of or pertaining to brainstorming.

to conduct or practice brainstorming.

to subject (a problem) to brainstorming.

verb

analyze , conceive , conceptualize , conjure up , create , deliberate , dream up , invent , plan , ponder , put heads together , rack brains , share ideas , think