Also known as: vexatious delays · unreasonable delay
Written by attorneys · grounded in primary & secondary sources — see below
An unreasonable delay by a plaintiff in commencing suit or by a buyer in effecting cover after breach.
After Vertex Pharmaceuticals failed to deliver contracted chemicals, buyer Velocity Logistics waited six weeks before purchasing replacements at a higher price. The delay prevented Velocity from mitigating damages promptly. The court treated the postponement as vexatious because it lacked any commercial justification and increased the seller's exposure.
After Villanueva Construction's excavation caused ongoing flooding on adjacent property, owner Vivian Velez waited eighteen months before seeking an injunction. The court weighed the extended inaction as vexatious delay when deciding whether equitable relief remained appropriate.
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Viola Volkov discovered toxic runoff from Vortex Energy's facility but filed for injunctive relief only after three years. The court considered the prolonged inaction as vexatious delay when balancing equities for the requested injunction.
After charging Vincente Vukovic with negligence, the state continued the case for four years to let related civil suits finish first. The court found the pattern constituted vexatious delay that prejudiced the defense and violated speedy-trial rights.
Illinois blocked Edgar v. MITE Corp.'s tender offer for sixty days under its takeover statute. The Supreme Court viewed the extended state-imposed waiting period as vexatious delay that unduly burdened interstate commerce.
Riverside County detained arrestees for up to ten days before providing probable-cause determinations. The Supreme Court held that such systematic postponement amounted to vexatious delay violating the Fourth Amendment.
Vexatious delay requires unjustified refusal or postponement without factual basis or legitimate purpose. Courts examine whether the actor had any reasonable ground for the inaction and whether the delay caused concrete prejudice.
Supporting sources
The concept surfaces in contract cover rules, tort injunction balancing, and constitutional speedy-trial or probable-cause cases whenever a party or government imposes unjustified postponement that harms the opposing side.
A buyer who waits unreasonably long before covering may lose the right to recover the full price differential. The statute requires good-faith substitute purchases made without unreasonable delay after the seller's breach.
Dismissal of the charges with prejudice is the usual remedy when the government bears responsibility for unjustified, prejudicial delay that violates the defendant's constitutional right to a prompt trial.
Supporting sources
…if the arrested individual can prove that his or her probable cause determination was delayed unreasonably. Examples of unreasonable delay are delays for the purpose of gathering additional evidence to justify the arrest, a delay motivated by ill will against the arrested individual, or delay for delay's sake. In evaluating…