constrain constitutor • constrainable · · · Info · Definitions · Synonyms · Characters · · constrain · · Text Latin · · Script 9 · · Length Definitions · · · (verb) hold back. Synonyms: restrain, encumber, cumber. · · Verb Definition 1 (verb) restrict. Synonyms: stiffen, tighten, tighten up. Examples: "Tighten the rules." "Stiffen the regulations." · · Verb Definition 2 Synonyms · · · restrain · · Synonym 1 encumber · · Synonym 2 cumber · · Synonym 3 stiffen · · Synonym 4 tighten · · Synonym 5 tighten up · · Synonym 6 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074