n 1 o 1 n 1 i 1 n 1 t 1 e 1 r 1 c 3 h 4 a 1 n 1 g 2 e 1 a 1 b 3 l 1 e 1
18 letters · 26 points in Scrabble
Meaning
adjective such that the terms of an expression cannot be interchanged without changing the meaning
originEtymology tree English non- English interchangeable English noninterchangeable From non- + interchangeable.
Etymology from Wiktionary, CC BY-SA 3.0