adjective

expressing something forcibly and clearly.

the children were emphatic that they would like to repeat the experience

vehement,firm,wholehearted,forceful,forcible,energetic,vigorous,ardent,assertive,insistent,certain,direct,definite,out-and-out,one hundred per cent,decided,determined,earnest,categorical,unqualified,unconditional,unequivocal,unambiguous,absolute,explicit,downright,outright,clear

noun

an emphatic consonant.