n.禁忌，禁止；v.禁忌，禁止,
Merriam-Webster Online Dictionary
taboo (adjective)1.
forbidden to profane use or contact because of what are held to be dangerous supernatural powers
2.
a) banned on grounds of morality or taste - the subject is taboo
b) banned as constituting a risk - the area beyond is taboo, still alive with explosives Robert Leckie
1.
a prohibition against touching, saying, or doing something for fear of immediate harm from a supernatural force
2.
a prohibition imposed by social custom or as a protective measure
3.
belief in - taboos
transitive verb
1.
to set apart as taboo especially by marking with a ritualistic symbol
2.
to avoid or ban as taboo
Merriam-Webster Online Thesaurus
taboo (adjective)that may not be permitted
SYNONYMS:
banned, barred, forbidden, interdicted, outlawed, prohibited, proscribed, taboo ( tabu), verbotenRELATED WORDS:
intolerable, unacceptable, unbearable, unendurable; illegal, illegitimate, illicit, improper, inappropriate, unauthorized, unlawful, unlicensed; ineffable, unmentionable; unseemly, unsuitable; objectionable; disallowed, disapproved, discouraged; refused, rejected, revoked, unsanctioned, vetoed; repressed, suppressed; precluded, prevented, stopped; excluded, ruled out, shut out; blocked, hindered, impeded, obstructedNEAR ANTONYMS:
acceptable, bearable, endurable, tolerable; accepted, accredited, allowed, appropriate, approved, authorized, certified, endorsed ( indorsed), lawful, legal, legitimate, licensed, OK ( okay), permitted, warranted; accorded, granted, sanctioned, vouchsafed; brooked, condoned, countenanced; encouraged, promoted, supported; commanded, mandatory, ordered, required; proper, seemly, suitable, tolerated, unobjectionable