clear β Something that is clear is easy to understand, see, or hear.
obvious β easily seen, recognized, or understood; open to view or knowledge; evident: an obvious advantage.
mysterious β full of, characterized by, or involving mystery: a mysterious occurrence.
certain β If you are certain about something, you firmly believe it is true and have no doubt about it. If you are not certain about something, you do not have definite knowledge about it.
definite β If something such as a decision or an arrangement is definite, it is firm and clear, and unlikely to be changed.
determined β If you are determined to do something, you have made a firm decision to do it and will not let anything stop you.
plain β clear or distinct to the eye or ear: a plain trail to the river; to stand in plain view.
sure β free from doubt as to the reliability, character, action, etc., of something: to be sure of one's data.
unambiguous β not ambiguous, or unclear; distinct; unequivocal: The object of the experiment was to reach an unambiguous conclusion about climate change.
understandable β capable of being understood; comprehensible.
unquestionable β not open to question; beyond doubt or dispute; indisputable; undeniable; certain: an unquestionable fact.
lucid β easily understood; completely intelligible or comprehensible: a lucid explanation.
easy β not hard or difficult; requiring no great labor or effort: a book that is easy to read; an easy victory.
calm β A calm person does not show or feel any worry, anger, or excitement.
free β enjoying personal rights or liberty, as a person who is not in slavery: a land of free people.
friendly β characteristic of or befitting a friend; showing friendship: a friendly greeting.
manageable β that can be managed; governable; tractable; contrivable.
simple β easy to understand, deal with, use, etc.: a simple matter; simple tools.
sociable β inclined to associate with or be in the company of others.
straightforward β going or directed straight ahead: a straightforward gaze.
uncomplicated β to make complex, intricate, involved, or difficult: His recovery from the operation was complicated by an allergic reaction.
comprehensible β Something that is comprehensible can be understood.
mis-explained β to make plain or clear; render understandable or intelligible: to explain an obscure point. Synonyms: explicate. Antonyms: confuse.
intelligible β capable of being understood; comprehensible; clear: an intelligible response.
natural β existing in or formed by nature (opposed to artificial): a natural bridge.
palpable β readily or plainly seen, heard, perceived, etc.; obvious; evident: a palpable lie; palpable absurdity.
undisguised β to change the appearance or guise of so as to conceal identity or mislead, as by means of deceptive garb: The king was disguised as a peasant.
common β If something is common, it is found in large numbers or it happens often.
bare β If a part of your body is bare, it is not covered by any clothing.
open β not closed or barred at the time, as a doorway by a door, a window by a sash, or a gateway by a gate: to leave the windows open at night.
distinguished β made conspicuous by excellence; noted; eminent; famous: a distinguished scholar. Synonyms: renowned, illustrious.
famous β having a widespread reputation, usually of a favorable nature; renowned; celebrated: a famous writer. Synonyms: famed, notable, illustrious. Antonyms: unknown, obscure.