SMART - adj. smart·er, smart·est
Characterized by sharp quick thought; bright.Quite strong, intense, numerous, etc.Energetic or quick in movement.Capable of making adjustments that resemble human decisions.Accomplished; talented.Brisk; vigorous; lively.Specific, measurable, attainable, relevant, time-bound, evaluate, reevaluate.BET·TER - adj. comparative of good
Greater in excellence or higher in quality.More suitable, more desirable, more favorable, more profitable, etc..More highly skilled or adept.Greater or larger.More advantageous or favorable; improved.Improved in health or disposition.Of a more excellent sort; surpassing another or others.FAST - adj. - fast·er, fast·est
Capable of acting or moving quickly; swift.Accomplished in relatively little time.Acquired quickly with little effort.Quick to understand or learn; mentally agile.Allowing rapid movement or action.Firm in loyalty.Lasting; permanent.