Synonyms for No strings attached:

• adj.

  •absolute (adjective)
  • simple,
  • no joke,
  • thorough,
  • infinite,
  • supreme,
  • unrestricted,
  • downright,
  • unconditional,
  • entire,
  • free,
  • total,
  • no ifs ands or buts,
  • plenary,
  • no holds barred,
  • outright,
  • straight out,
  • sheer,
  • no catch,
  • complete,
  • utter,
  • pure,
  • flat out,
  • freest,
  • unabridged,
  • no fine print,
  • consummate,
  • unqualified,
  • unlimited,
  • full,
  • unadulterated.
  •boundless (adjective)
  • inexhaustible,
  • tremendous,
  • unending,
  • untold,
  • indefinite,
  • unbounded,
  • measureless,
  • limitless,
  • unconfined,
  • incalculable,
  • immeasurable,
  • great,
  • illimitable,
  • vast.
  •categorical (adjective)
  • forthright,
  • unambiguous,
  • emphatic,
  • all out,
  • unreserved,
  • ultimate,
  • direct,
  • definitive,
  • definite,
  • clear cut,
  • express,
  • specific,
  • certain,
  • sure,
  • positive,
  • unmitigated,
  • clear-cut.
  •optional (adjective)
  • facultative,
  • discretionary,
  • nonobligatory,
  • up to the individual,
  • not required,
  • extra,
  • volitional,
  • alternative,
  • elective,
  • non-compulsory,
  • noncompulsory,
  • open,
  • discretional,
  • voluntary,
  • arbitrary,
  • unforced.
  •Other relevant words: (adjective)
  • optional,
  • absolute,
  • immense,
  • univocal,
  • unequivocal,
  • wide open,
  • categorical,
  • no end of,
  • no end to,
  • no strings,
  • open and shut,
  • boundless,
  • Uncontestable.
  •unequivocal (adjective)
  • indubitable,
  • evident,
  • decisive,
  • distinct,
  • undeniable,
  • incontrovertible,
  • plain,
  • apparent,
  • straightforward,
  • unmistakable,
  • indisputable,
  • clear,
  • palpable,
  • manifest,
  • straight,
  • unquestionable,
  • incontestable,
  • patent,
  • undisputable,
  • explicit,
  • obvious,
  • decided.

• adv

  •absolutely (adverb)
  • very thing.
  •Other relevant words: (adverb)
  • no mistake,
  • determinedly,
  • for a fact,
  • absolutely,
  • in spades,
  • unequivocally,
  • by all means,
  • terrifically,
  • unmistakably,
  • positively.

• adv.

  •absolutely (adverb)
  • surely,
  • right on,
  • unambiguously,
  • unquestionably,
  • actually,
  • definitely,
  • sure as hell,
  • doubtless,
  • on the nose,
  • unconditionally,
  • categorically,
  • precisely,
  • come hell or high water,
  • easily,
  • conclusively,
  • sure thing,
  • sure enough,
  • exactly,
  • really,
  • on the money,
  • the very thing,
  • truly,
  • decisively,
  • on the button,
  • for sure,
  • decidedly,
  • sure as can be.
  •decidedly (adverb)
  • of course,
  • real,
  • bloody,
  • right,
  • distinctly,
  • clearly,
  • powerful,
  • strongly.
  •Other relevant words: (adverb)
  • terribly,
  • emphatically.
  •positively (adverb)
  • assuredly,
  • to a tee,
  • without qualification,
  • flat,
  • no kicker,
  • firmly,
  • with certainty,
  • certainly,
  • undoubtedly,
  • amen,
  • really truly,
  • the ticket,
  • indubitably,
  • undeniably,
  • Doubtlessly.

• Other synonyms:

  •Other relevant words (noun):
  • ex gratia.

Antonyms for No strings attached:

• adj.

  • absolute
    accountable, bounded, circumscribed, flawed, compliant, needy, part, dependent, qualified, partial, conditional, restricted, indefinite, uncertain, abridged, complaisant, submissive, incomplete, tractable, imperfect, unfinished, yielding, limited.
  • boundless
    finite, measurable, calculable, small, ending, countable, little, tiny.
  • categorical
    indistinct, tentative, ambiguous, vague, implied, equivocal, inexact, uncategorical.
  • optional
    forced, required, compulsory.
  • unequivocal
    obscure, unsure, disputable, unclear, Obscured, dubious.

• adv.

  • absolutely
    partially, questionably, doubtful, not certain, dubiously, doubtfully, questionable, not sure.

• n.

  • other_words
    quid-pro-quo, quid pro quo.