Antonyms of verb fasten

2 of 4 senses of fasten

Sense 1
fasten, fix, secure -- (cause to be firmly attached; "fasten the lock onto the door"; "she fixed her gaze on the man")
       Antonym of unfasten (Sense 1)
      => unfasten -- (cause to become undone; "unfasten your belt")

Sense 2
fasten -- (become fixed or fastened; "This dress fastens in the back")
       Antonym of unfasten (Sense 2)
      => unfasten -- (become undone or untied; "The shoelaces unfastened")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb fasten

4 senses of fasten

Sense 1
fasten, fix, secure -- (cause to be firmly attached; "fasten the lock onto the door"; "she fixed her gaze on the man")
       => attach -- (cause to be attached)

Sense 2
fasten -- (become fixed or fastened; "This dress fastens in the back")
       => attach -- (become attached; "The spider's thread attached to the window sill")

Sense 3
fasten -- (attach to; "They fastened various nicknames to each other")
       => attach -- (cause to be attached)

Sense 4
tighten, fasten -- (make tight or tighter; "Tighten the wire")
       => change, alter, modify -- (cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue")

Antonyms of adj fastened

3 senses of fastened

Sense 1
fastened (vs. unfastened) -- (firmly closed or secured; "found the gate fastened"; "a fastened seatbelt")

unfastened (vs. fastened) -- (not closed or secured; "the car door was unfastened"; "unfastened seatbelts")
        => unbarred, unbolted, unlatched, unlocked, unsecured -- (not firmly fastened or secured; "an unbarred door"; "went through the unlatched gate into the street"; "an unlocked room")
        => undone -- (not fastened or tied or secured; "her blouse had come undone at the neck"; "his shoelaces were undone")

Sense 2
buttoned (vs. unbuttoned), fastened -- (furnished or closed with buttons or something buttonlike)


Sense 3
tied (vs. untied), fastened -- (fastened with strings or cords; "a neatly tied bundle")


Similarity of adj fastened

3 senses of fastened

Sense 1
fastened (vs. unfastened) -- (firmly closed or secured; "found the gate fastened"; "a fastened seatbelt")
       => pegged-down -- (fastened by pegs; "the pegged-down branches of the plant will take root")

Sense 2
buttoned (vs. unbuttoned), fastened -- (furnished or closed with buttons or something buttonlike)
       => botonee, botonnee -- ((of a heraldic cross) having a cluster of three buttons or knobs at the end of each arm)
       => button-down -- (of a shirt; having the ends of the collar fastened down by buttons; "Brooks Brothers button-down shirts")

Sense 3
tied (vs. untied), fastened -- (fastened with strings or cords; "a neatly tied bundle")
       => knotted -- (tied with a knot; "his carefully knotted necktie")