[im-pakt-fuh l] /ɪmˈpækt fəl/
having or manifesting a great impact or effect:
After the senator’s impactful speech, her bill passed.
having a powerful effect or making a strong impression: a thoughtful and impactful display of contemporary art
having a great impact or effect
1968, from impact + -ful. Related: Impactfully; impactfulness.
[noun im-pakt; verb im-pakt] /noun ˈɪm pækt; verb ɪmˈpækt/ noun 1. the striking of one thing against another; forceful contact; collision: The impact of the colliding cars broke the windshield. 2. an impinging: the impact of light on the eye. 3. influence; effect: the impact of Einstein on modern physics. 4. an impacting; forcible impinging: […]
[im-pak-shuh n] /ɪmˈpæk ʃən/ noun 1. an act or instance of . 2. the state of being ; close fixation. 3. Dentistry. the condition in which a tooth is . n. 1739, from Latin impactionem (nominative impactio) “a striking against,” noun of action from past participle stem of impingere (see impinge). impaction im·pac·tion (ĭm-pāk’shən) n. […]
[im-pak-tahyt, im-pak-tahyt] /ɪmˈpæk taɪt, ˈɪm pækˌtaɪt/ noun 1. a glassy or crystalline material composed of slag and meteoric materials, produced by the of a meteorite striking the earth.
[im-pak-tiv] /ɪmˈpæk tɪv/ adjective 1. caused by : impactive pain. 2. compelling or impressive: He was deeply moved by the impactive force of the performance. /ɪmˈpæktɪv/ adjective 1. of or relating to a physical impact 2. making a strong impression