What does forgetful mean?
Forgetful is an adjective describing a tendency to fail to remember — whether names, appointments, keys, or obligations. Applied to people, it suggests a memory that lets things slip, ranging from harmless absent-mindedness to the more serious lapses associated with aging. Applied to conduct, it can carry a faint note of censure: someone may be described as forgetful of a promise, a duty, or even their own origins, implying neglect rather than mere mental lapse. The word derives from the verb forget, itself rooted in Old English forgietan, meaning to lose hold of something in the mind, so its lineage is genuinely Anglo-Saxon rather than borrowed from Latin or French. In modern usage it is largely neutral to gently sympathetic: we speak of growing forgetful, becoming forgetful, or feeling forgetful under stress. Its close relatives include forgetfulness (the noun), forgetfully (the adverb), and forgettable, which describes not the remembering mind but the thing too dull to be remembered.
Liable to forget; unable to keep things reliably in mind.
"She's become quite forgetful since retiring — she now writes everything down."
Commonly predicated of people ('a forgetful old man'); when used with 'of' ('forgetful of one's duties'), it takes on a slightly literary, reproachful tone.
Done or occurring through neglect or lack of due regard, especially toward an obligation or person.
"They were forgetful of the friends who had helped them in harder times."
This sense almost always appears in the construction 'forgetful of X' and is more formal or literary than the first sense.
In Old English, 'forget' literally meant to lose one's grip on a thought — so being forgetful has meant 'letting go' for over a thousand years.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of forgetful
Forgetful derives from the verb forget, formed from Old English forgietan ('to lose the ability to recall', literally 'to lose grip of'), composed of the prefix for- and gietan, related to getan ('to grasp, obtain'), the root of 'get'. The adjective form arose by suffixing -ful in English, making it a native Germanic formation rather than a Latin borrowing. Related words sharing the same base verb include forget-me-not, the flower long symbolic of remembrance.
Related word forms
How forgetful is actually used
Generally mild and informal-to-neutral in connotation; describing an elderly relative as forgetful is common and usually gentle rather than harsh. The phrase 'forgetful of' (e.g. 'forgetful of her duties') is somewhat literary or formal, while everyday usage favors simply calling a person forgetful about specifics ('forgetful with names').
Easily confused with forgetful
Forgetful describes a person who fails to remember, while forgettable describes something not worth remembering.