insidious
adjective/ɪnˈsɪdiəs/
Frequency rank: #10,182 of 20,003 in the WORDED list (wordfreq data)
Meaning
Proceeding in a gradual, subtle way but with harmful effects.
Example sentence
The insidious disease showed no symptoms for years before it became life-threatening.
Synonyms & related words
More words in ranks 10,101–10,200
- hangera shaped frame, usually with a hook, used to hang clothes.
- hemto fold and sew the edge of a piece of cloth to finish it neatly.
- hitmana person who is paid to murder someone; a professional killer.
- housekeepingthe work of cleaning and maintaining a house or hotel, or routine tasks that keep a system running smoothly.
- infiltrationthe act of secretly entering or gaining access to an organization or place.
- intimatelyin a very close, detailed, or thorough manner
- jargonspecialized words or expressions used by a particular group or profession.
- kayaka small, narrow boat propelled by a double-bladed paddle.
- kneelto go down on one or both knees.
- leakagethe accidental escape of liquid, gas, or other substance through a hole or crack.