This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Intended or used to prevent or hinder; acting as an obstacle: preventive measures.

adj. Carried out to deter expected aggression by hostile forces.

adj. Preventing or slowing the course of an illness or disease; prophylactic: preventive medicine; preventive health care.

n. Something that prevents; an obstacle.

n. Something that prevents or slows the course of an illness or disease.

adj. Preventing, hindering, or acting as an obstacle to.

adj. Carried out to deter military aggression.

adj. Slowing the development of an illness; prophylactic.

n. A thing that prevents, hinders, or acts as an obstacle to.

n. A thing that slows the development of an illness.

n. A contraceptive, especially a condom.

adj. Going before; preceding.

adj. Tending to defeat or hinder; obviating; preventing the access of.

n. That which prevents, hinders, or obstructs; that which intercepts access; in medicine, something to prevent disease; a prophylactic.

Serving to prevent or hinder; guarding against or warding off something, as disease, injustice, loss, etc.

n. That which goes before; an anticipation.

n. That which prevents; that which constitutes an effectual check or insurmountable obstacle.

n. Specifically, something taken, used, or done beforehand to ward off disease.

n. Also preventative.

n. remedy that prevents or slows the course of an illness or disease

adj. tending to prevent or hinder

adj. preventing or contributing to the prevention of disease

n. any obstruction that impedes or is burdensome

n. an agent or device intended to prevent conception

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blockading    obviating    prohibitory    clogging    preclusive    frustrative    precautional    hindering    impeding    obstructive   

contributory   

curative    remedy    therapeutic    cure   

preventive service   

preceding    obviating    prophylactic    preventative    preclusive    inhibitory    inhibitive    deterrent    prohibitive    prohibitory   

attentive    disincentive    inattentive    incentive    inventive   

veterinary    preventative    operational    medical    therapeutic    corrective    surgical    remedial    curative    diagnostic