expeditious (adjective) expeditious: immediate, speedy
Sinonime: boss*, call the shots, command, control, detract from, dictate, direct, domineer, eclipse, handle*, have one's way, have upper hand, head, hold sway over, influence, keep under thumb, lay down the law, lead, lead by the nose, manage, monopolize, outshine, overbear, overrule, overshadow, play first fiddle, predominate, prevail, prevail over, reign, reign supreme,
rule, rule the roost, run, run the show, sit on top of, subject, subjugate, superabound, sway, tyrannize
Antonime: pokey,
retarded,
slow