1. [ adjective ] easily irritated or annoyed
Synonyms: peevish irritable testy techy peckish pettish petulant tetchy nettlesome cranky

"an incorrigibly fractious young man" "not the least nettlesome of his countrymen"

Related terms: ill-natured
2. [ adjective ] stubbornly resistant to authority or control
Synonyms: refractory

"a fractious animal that would not submit to the harness" "a refractory child"

Related terms: disobedient
3. [ adjective ] unpredictably difficult in operation; likely to be troublesome

"rockets were much too fractious to be tested near thigkly populated areas" "fractious components of a communication system"

Related terms: difficult
Similar spelling:   fractiously