Use βλάκας for a plainly insulting judgment about someone’s thinking or behaviour. It is blunter than χαζός and κουτός, but usually less vulgar than μαλάκας and can be less severe than ηλίθιος depending on tone. Among friends it may be teasing, but that does not make it affectionate by itself.
| Incorrect | Correct |
| Αυτή η ιδέα είναι βλάκας. | Αυτή η ιδέα είναι βλακώδης. |
| Τον είπα βλακας. | Τον είπα βλάκα. |
| Μίλησα με ο βλάκας. | Μίλησα με τον βλάκα. |
Do not use βλάκας as a current diagnosis. In historical medical writing it is a dated and more demeaning label than modern person-first expressions such as άτομο με νοητική αναπηρία. Outside quotation or historical discussion it is heard as the ordinary insult.
| Incorrect | Correct |
| Ο γιατρός διέγνωσε τον ασθενή ως βλάκα. | Ο γιατρός διέγνωσε νοητική αναπηρία. |
| Το βλάκας είναι σύγχρονος ιατρικός όρος. | Το «βλάκας» είναι παρωχημένος ιατρικός όρος. |
| Οι βλάκες χρειάζονται ειδική εκπαίδευση. | Τα άτομα με νοητική αναπηρία μπορεί να χρειάζονται υποστήριξη στην εκπαίδευση. |
Use βλάκας only with awareness that it insults a person’s intelligence or judgment. Friendly tone can soften it, but formal, professional, educational, and clinical settings call for precise, non-stigmatizing language.
βλακας is missing the required accent, and μια ιδέα είναι βλάκας wrongly uses the person-noun as an adjective. Use βλάκας for a person and βλακώδης or ανόητη for an idea.
From Ancient Greek βλάξ, “sluggish, dull, or stupid,” through the accusative form βλάκα, which was reshaped as the base of the modern noun.
What does βλάκας mean?
It usually means an idiot or fool and is an informal insult aimed at someone’s sense or judgment.
How strong is βλάκας?
It is blunter than χαζός or κουτός, usually less vulgar than μαλάκας, and its force depends greatly on tone and relationship.
Can βλάκας be teasing?
Yes, close friends may use it jokingly, but from a stranger or during conflict it is plainly insulting.
What are the forms of βλάκας?
The plural is βλάκες, while the singular accusative and vocative are βλάκα.
Is βλάκας a medical term?
It occurred in older psychiatric classification, but that use is obsolete, imprecise, and stigmatizing.