deadly
WordReference English Thesaurus © 2026
Sense: Adjective: causing death
Synonyms:
deathly, fatal, lethal, mortal, killer Collocations, terminal Collocations, life-threatening, poisonous Collocations, toxic, noxious Collocations, venomous, carcinogenic, murderous, homicidal, bloody Collocations, malignant, deleterious, baleful, baneful, pestilential, pestilent, pestiferous, death-dealing, dangerous Collocations, hazardous Collocations
Antonyms:
nonfatal, nonlethal, nontoxic, nonpoisonous, safe Collocations, harmless Collocations, restorative, beneficial Collocations, helpful Collocations, restorative, healthy Collocations, healthful
Sense: Adjective: very tiresome
Synonyms:
boring Collocations, tedious Collocations, tiresome Collocations, dull Collocations, monotonous, mind-numbing, as dull as dishwater , as dull as ditchwater , a snore , interminable
Antonyms:
energizing, revitalizing, invigorating, enlivening, reanimating, refreshing, reenergizing, stimulating, exciting Collocations