perfunctory casual passing superficial careless quick speedy swift rapid expeditious fast hasty rapidly exhaustive thorough briefest dispassionate desultory laudatory voluminous pertinent innocuous prompt indepth celerity swiftly speedily quickly swiftness superfast rapidity pacey speed promptly quickness speedster accelerate hastily apace briskly abstain snappy velocity abstinence hasten hurriedly alacrity rapidness acceleration speediness nimble hurry andantino speedful ultrafast meteoric superspeed hyperspeed abstinent haste hypervelocity impenetrable allegro sawm ramadan outspeed meticulous succinct quicken impervious soon excitable brief glimpses swipes speeder frankest securely synopsis rusher outgallop summary ahead perusing shamefaced acknowledgments mere anecdotal stationariness sobering pithy insightful accelerator gabble concise shallow periscope gleaned instantaneous evaluations