Deterrent

a.	1.	Serving to deter.
n.	1.	That which deters or prevents.

Noun	1.	deterrent - something immaterial that interferes with or delays action or progress Synonyms: hindrance, impediment, balk, baulk, handicap, check
Adj.	1.	deterrent - tending to deter; "the deterrent effects of high prices"

admonishing, admonitory, alarming, awing, bar, block, blockade, bottleneck, catch, cautionary, cautioning, check, chill, chilling, cold water, cordon, curtain, damp, damper, daunting, determent, deterring, difficulty, disconcerting, discouragement, discouraging, disheartening, disincentive, disinclining, dismaying, disquieting, dissuading, dissuasion, dissuasive, drawback, exemplary, expostulatory, fear-inspiring, fearful, fearsome, forbidding, forestalling, frightening, frightful, hang-up, hazard, hindrance, hitch, hurdle, impediment, intimidating, joker, monitorial, monitory, notificational, notifying, objection, obstacle, obstruction, obstructive, one small difficulty, overawing, preclusive, preventative, preventive, prohibitive, prophylactic, rub, scaring, scary, snag, startling, stumbling block, stumbling stone, warning, wet blanket