UNDERSTANDABLE
apprehensible, intelligible, graspable, perceivable, understandable
(adjective) capable of being apprehended or understood
Source: WordNet® 3.1
Etymology
Adjective
understandable (comparative more understandable, superlative most understandable)
Capable of being understood; comprehensible.
Capable of being accepted or excused under the circumstances.
Synonyms
• (capable of being understood): comprehensible, understandable; See also comprehensible
• (capable of being accepted): acceptable, excusable
Antonyms
• (capable of being understood): incomprehensible, unfathomable; See also incomprehensible
• (capable of being accepted): inexcusable, unacceptable
Source: Wiktionary
Un`der*stand"a*ble, a.
Definition: Capable of being understood; intelligible. Chillingworth.
Source: Webster’s Unabridged Dictionary 1913 Edition