arduous

1. Demanding great effort or labor; difficult: "the arduous work of preparing a Dictionary of the English Language” ( Thomas Macaulay).

2. Hard to traverse, climb, or surmount. See Synonyms at burdensome, hard.

3. Testing severely the powers of endurance; strenuous: a long, arduous, and exhausting war.

4. Hard to accomplish or .

5. Marked by great labor or effort .

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Top Words by points	Points	Word Game
arduous	8	Scrabble

2 Letters	Scrabble® Points
ar	2
so	2
os	2
or	2
od	3
us	2
do	3
da	3
ad	3
as	2

3 Letters	Scrabble® Points
our	3
ado	4
oar	3
oda	4
ods	4
ora	3
ors	3
oud	4
aro	3
sou	3
sod	4
sau	3
rad	4
ras	3
rod	4
sad	4
das	4
dor	4
dos	4
ars	3
udo	4
urd	4
duo	4
ads	4

4 Letters	Scrabble® Points
soda	5
aros	4
urus	4
ursa	4
urds	5
sard	5
soar	4
udos	5
surd	5
sura	4
sour	4
sord	5
sora	4
odas	5
duro	5
dura	5
duos	5
rods	5
dour	5
dosa	5
dors	5
oars	4
orad	5
osar	4
ouds	5
ours	4
rads	5
road	5
ados	5

5 Letters	Scrabble® Points
doura	6
sudor	6
sarod	6
dorsa	6
duras	6
duros	6
roads	6

6 Letters	Scrabble® Points
douras	7
aurous	6

7 Letters	Scrabble® Points
arduous	8