Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: French
Origin: invalide, from Latin invalidus; INVALID1

invalid

2 noun
     
Related topics: Illness and Disability
in‧va‧lid2 [countable]
MI someone who cannot look after themselves because of illness, old age, or injury:
I resented being treated as an invalid.
—invalid adjective [only before noun]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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