10 letters · 12 points in Scrabble
adjective appearing as such but not necessarily so
adjective represented or appearing as such; pretended
originBorrowed from French ostensible, formed with the suffix -ible, from Latin ostensus, the past participle of ostendō (“show”), itself from obs- (“in front of”) (akin to ob- (“in the way”)) + tendō (“stretch”) (akin to Ancient Greek τείνω (teínō)). Cf. also Medieval Latin ostensibilis.
Etymology from Wiktionary, CC BY-SA 3.0