harmless has definitions from the field of pathology
1
[ adjective ] not causing or capable of causing harm

Examples

"harmless bacteria" "rendered the bomb harmless"

Used in print

(Ann Hebson, The Lattimer Legend....)

`` Everybody knows I'm just a harmless , deaf old_man who takes_to drink .

2
[ adjective ] unlikely to harm or disturb anyone

Synonyms

innocuous

Examples

"harmless old man"

Related terms

safe

3
[ adjective ] not injurious to physical or mental health

Synonyms

innocuous

4
[ adjective ] not producing any toxic effects

Related terms

nontoxic

5
[ adjective ] (pathology) not threatening to life or health; not malignant

Synonyms

nonmalignant

Examples

"a benign tumor is usually harmless"

Related terms

pathology benign

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