Synonyms for No-no's:

• n.

  •ban (noun)
  • out of bounds,
  • off limits,
  • interdiction,
  • restriction,
  • a thou-shalt-not,
  • stoppage,
  • censorship,
  • refusal,
  • taboo,
  • boycott,
  • prohibition,
  • don't,
  • injunction,
  • suppression,
  • embargo,
  • limitation,
  • proscription.
  •constraint (noun)
  • spur,
  • impelling,
  • necessity,
  • driving,
  • impulsion,
  • restraint,
  • goad,
  • a must,
  • spring,
  • compulsion,
  • violence,
  • duress,
  • coercion,
  • pressure,
  • monkey,
  • repression,
  • hang-up,
  • motive.
  •curse (noun)
  • dirty word,
  • ban,
  • Blaspheming,
  • dirty name,
  • execration,
  • swear word,
  • whammy,
  • bane,
  • oath,
  • profanation,
  • malediction,
  • obloquy,
  • profanity,
  • damning,
  • cussing,
  • vilification,
  • cursing,
  • fulmination,
  • obscenity,
  • Objuration,
  • expletive,
  • Malison,
  • imprecation,
  • denunciation,
  • blasphemy,
  • naughty words,
  • sacrilege,
  • swearing,
  • double whammy,
  • commination,
  • cuss word,
  • four-letter word,
  • anathema.
  •forbidden fruit (noun)
  • desired object,
  • illegal indulgence,
  • golden apple,
  • forbidden indulgence,
  • illegal pleasure,
  • illicit love,
  • prohibited article,
  • immoral pleasure.
  •guide (noun)
  • catalog,
  • guidebook,
  • compendium,
  • handbook,
  • marker,
  • signal,
  • clue,
  • bellwether,
  • directory,
  • telltale,
  • key,
  • mark,
  • bible,
  • print,
  • tip-off,
  • landmark,
  • chapter and verse,
  • beacon,
  • pointer,
  • sign,
  • abcs.
  •malediction (noun)
  • jinx,
  • cuss,
  • damnation,
  • curse word,
  • darn,
  • damn.
  •oath (noun)
  • swearword,
  • strong language.
  •profanity (noun)
  • profaneness,
  • curse,
  • impiety,
  • abuse,
  • irreverence,
  • dirty language.
  •prohibition (noun)
  • veto,
  • exclusion,
  • prevention,
  • obstruction,
  • negation,
  • bar,
  • repudiation,
  • interdict,
  • Disallowance,
  • temperance,
  • constraint.
  •restriction (noun)
  • string,
  • cramp,
  • containment,
  • bounds,
  • glitch,
  • ball and chain,
  • curb,
  • brake,
  • inhibition,
  • small difficulty,
  • check,
  • reservation,
  • stricture,
  • stint,
  • custody,
  • excess baggage,
  • stipulation,
  • circumscription,
  • demarcation,
  • stumbling block,
  • qualification,
  • limits,
  • grain of salt,
  • contraction,
  • control,
  • fine print,
  • catch,
  • handicap,
  • confinement,
  • lock,
  • condition.
  •rule (noun)
  • propriety,
  • maxim,
  • law,
  • basis,
  • moral,
  • dictum,
  • etiquette,
  • assize,
  • command,
  • gnome,
  • fundamental,
  • model,
  • keynote,
  • keystone,
  • decree,
  • precept,
  • precedent,
  • test,
  • direction,
  • canon,
  • criterion,
  • order,
  • apothegm,
  • axiom,
  • tenet,
  • decorum,
  • commandment,
  • truism,
  • prescription,
  • regimen,
  • aphorism,
  • ordinance,
  • statute,
  • ruling,
  • formula,
  • edict,
  • regulation.
  •swearing (noun)
  • dirty talk,
  • expletives,
  • bad language.
  •taboo (noun)
  • religious convention,
  • superstition,
  • disapproval,
  • sanction,
  • social convention,
  • thou-shalt-not,
  • forbiddance.

• Other synonyms:

  •n.
  • enchiridion,
  • guide,
  • guideline,
  • guiding light,
  • lodestar,
  • manual,
  • rule,
  • signpost,
  • vade mecum,
  • Brocard,
  • Decretion,
  • tip off,
  • lodestars,
  • signposts,
  • keynotes,
  • keystones,
  • no-no,
  • no-nos,
  • telltales,
  • the book,
  • the numbers,
  • tipoff,
  • hot lead.

Antonyms for No-no's:

• n.

  • ban
    permission, sanction, allowance, approval.
  • constraint
    hindrance, deterrent, discouragement, aggression, freedom, liberty.
  • curse
    praise, reverence, compliment, piety.
  • malediction
    blessing.
  • oath
    pleasantry, break, kindness.
  • profanity
    respect, clean language.
  • prohibition
    help, aid, clearance.
  • proscription
    ok, assistance, ratification.
  • restriction
    enlargement, release, advantage, expansion, liberation.
  • rule
    bad manners, disorganization, lawlessness.
  • taboo
    Mentionable.