当然【とうぜん】
natural, right, proper, just, reasonable, appropriate, deserved, naturally, as a matter of course, rightly, deservedly, justly, of course
全然【ぜんぜん】
(not) at all, (not) in the slightest, wholly, entirely, completely, totally, extremely, very
突然【とつぜん】
abrupt, sudden, unexpected
自然【しぜん】
nature, natural, spontaneous, automatic, naturally, spontaneously, automatically
偶然【ぐうぜん】
coincidence, chance, accident, fortuity, by chance, unexpectedly, accidentally, contingency
自然【じねん】
occurring naturally (without human influence)
同然【どうぜん】
just like, (virtually) no different from, (almost) the same as, as good as (e.g. dead, settled)
不自然【ふしぜん】
unnatural, artificial, affected, strained
天然【てんねん】
nature, spontaneity, natural airhead
依然【いぜん】
still, as yet, as it has been
未然【みぜん】
before it happens, previously
必然的【ひつぜんてき】
inevitable, necessary
公然【こうぜん】
open, public, official, overt
断然【だんぜん】
firmly, flatly, resolutely, decisively, absolutely, definitely, definitely (wrong, different, etc.), absolutely, by far, far and away, by a long shot, hands down
自然科学【しぜんかがく】
natural science
必然【ひつぜん】
inevitable, necessary, certain, sure, inevitability, necessity
漠然【ばくぜん】
vague, obscure, indistinct, hazy, ambiguous
敢然【かんぜん】
boldly, bravely, resolutely, determinedly
依然として【いぜんとして】
still, as yet, as of old
天然ガス【てんねんガス】
natural gas
