Flashy is a synonym of pizazzy.

As adjectives the difference between flashy and pizazzy

is that flashy is showy; visually impressive, attention-getting, or appealing while pizazzy is (informal) of, characterized by, or exhibiting pizazz.

Zesty is a synonym of pizazzy.

As adjectives the difference between zesty and pizazzy

is that zesty is having a piquant or pungent taste; spicy while pizazzy is (informal) of, characterized by, or exhibiting pizazz.

As an adjective undecidable

is incapable of being algorithmically decided in finite time. For example, a set of strings is undecidable if it is impossible to program a computer (even one with infinite memory) to determine whether or not specified strings are included.

As an adverb undecidably is

in an undecidable manner.

As nouns the difference between convex and sunglass

is that convex is any convex body or surface while sunglass is singular form of sunglasses; used chiefly in compounds.

As an adjective convex

is curved or bowed outward like the outside of a bowl or sphere or circle.

As nouns the difference between lens and sunglass

is that lens is lentil while sunglass is singular form of sunglasses; used chiefly in compounds.

As a proper noun glass

is .

As a noun sunglass is

singular form of sunglasses; used chiefly in compounds.

As nouns the difference between focus and sunglass

is that focus is (countable|optics) a point at which reflected or refracted rays of light converge while sunglass is singular form of sunglasses; used chiefly in compounds.

As a verb focus

is to cause (rays of light, etc) to converge at a single point.

As adjectives the difference between elegant and ultraelegant

is that elegant is elegant while ultraelegant is extremely elegant.

As verbs the difference between count and undercount

is that count is to recite numbers in sequence while undercount is to count to an insufficient degree; to count one thing disproportionately less than another.

As a noun count

is the act of or tallying a quantity or count can be the male ruler of a county.

As an adverb disproportionately

is in a disproportionate manner.

As a verb undercount is

to count to an insufficient degree; to count one thing disproportionately less than another.