← DefinitionshareGuessquickadverbAt a fast speed; without delay. (Often used in informal speech instead of 'quickly'.)nounThe soft, sensitive flesh under a fingernail or toenail.adjectiveMoving or happening at a fast speed; done in a short time.SynonymsrapidadjectivespeedyadjectivefastadjectiveswiftadjectiveAntonymsslowlyadverbslowadjectivedulladjective