What does feeler mean?
A feeler is, most literally, one of the paired, jointed sensory organs on the heads of insects, crabs, and similar creatures — flexible appendages that detect touch, vibration, and chemical cues such as scent. From this biological sense English has developed a vivid figurative use: a feeler is a cautious, exploratory remark or proposal made to discover how others will respond before taking any definite step. A job seeker might 'put out feelers' among contacts, and a government might float a feeler through intermediaries to test the waters of negotiation. The word is concrete when applied to nature and idiomatic when applied to human dealings, where it typically appears in the plural and suggests tact, prudence, and a desire to avoid premature commitment. Its double life makes it a compact example of how everyday observation of the natural world supplies metaphors for subtle social behaviour.
A slender, movable sensory appendage on the head of an insect or crustacean, used chiefly for touching and smelling.
"The snail extended its feelers cautiously from its shell."
Applied especially to insects and crustaceans; strictly speaking, insect feelers are called antennae.
A tentative remark, proposal, or inquiry made to test another person's reaction.
"Her casual question was just a feeler to find out if he was interested in the deal."
Usually in the plural, especially in the phrase 'to put out feelers'.
The plural is standard for both senses; the figurative sense rarely occurs in the singular except in the phrase 'a feeler'.
"The moth's delicate feelers quivered in the night air."
An insect wears its feelers; a diplomat deploys them — the same word covers both antennae and discreet trial balloons in negotiation.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of feeler
Feeler was formed in English from the verb 'feel', itself inherited from Old English 'fēlan', of Germanic origin. The literal sense referring to an insect's sensory appendage arose in the early seventeenth century, and the figurative sense of a tentative overture developed later, extending the idea of cautiously testing one's surroundings. It is thus a native English formation rather than a borrowing, sharing its root with related words such as 'feel' and 'feeling'.
Related word forms
How feeler is actually used
In the figurative sense, feeler almost always appears in the plural ('put out feelers') and carries a neutral to informal register common in business and political journalism; it implies caution and discretion rather than commitment.
Easily confused with feeler
Feeler is a noun denoting a sensory appendage or tentative inquiry, while feign is a verb meaning to pretend or fake.