- deletorious (now proscribed)
Borrowed (1640s, 1582 as deletorious) from Medieval Latin deleterius, deletorius, from Ancient Greek δηλητήριος (dēlētḗrios, “noxious, deleterious”), from δηλητήρ (dēlētḗr, “a destroyer”), from δηλέομαι (dēléomai, “I hurt, damage, spoil, waste”).
- (Received Pronunciation) IPA(key): /ˌdɛlɪˈtɪəɹi.əs/, /ˌdɪlɪˈtɪəɹi.əs/
- (US) IPA(key): /ˌdɛləˈtɪɹi.əs/
Audio (US) (file) Audio (AU) (file)
- Rhymes: -ɪəɹiəs
- Harmful often in a subtle or unexpected way.
- Synonyms: destructive, harmful, hurtful, injurious, noxious, pernicious; see also Thesaurus:harmful
- deleterious effects
- deleterious to someone's health
- 2017 September, Jean M. Twenge, “Have Smartphones Destroyed a Generation?”, in The Atlantic:
- The advent of the smartphone and its cousin the tablet was followed quickly by hand-wringing about the deleterious effects of “screen time.” But the impact of these devices has not been fully appreciated, and goes far beyond the usual concerns about curtailed attention spans.
- (genetics) Having lower fitness.
- deleterious at OneLook Dictionary Search
- “deleterious” in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
- Douglas Harper (2001–2022), “deleterious”, in Online Etymology Dictionary.